[releng] Update year in copyright notices for features

Bump upper end of range to 2020.

These copyright notices are user-facing; they're visible in several
dialogs in Eclipse. It is strange or even misleading to see a copyright
notice for JGit saying "2005, 2010" when there have been *many*
developments in the past ten years.

Change-Id: Idaa6244b2b3d9cecb29cc690085f8d008195cf12
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
diff --git a/org.eclipse.jgit.packaging/org.eclipse.jgit.feature/feature.properties b/org.eclipse.jgit.packaging/org.eclipse.jgit.feature/feature.properties
index d47cc01..848365e 100644
--- a/org.eclipse.jgit.packaging/org.eclipse.jgit.feature/feature.properties
+++ b/org.eclipse.jgit.packaging/org.eclipse.jgit.feature/feature.properties
@@ -20,7 +20,7 @@
 
 # "copyright" property - text of the "Feature Update Copyright"
 copyright=\
-Copyright (c) 2005, 2010 Shawn Pearce, Robin Rosenberg, et.al.\n\
+Copyright (c) 2005, 2020 Shawn Pearce, Robin Rosenberg, et.al.\n\
 All rights reserved. This program and the accompanying materials\n\
 are made available under the terms of the Eclipse Distribution License v1.0\n\
 which accompanies this distribution, and is available at\n\
diff --git a/org.eclipse.jgit.packaging/org.eclipse.jgit.http.apache.feature/feature.properties b/org.eclipse.jgit.packaging/org.eclipse.jgit.http.apache.feature/feature.properties
index b2fd6ed..782d5bf 100644
--- a/org.eclipse.jgit.packaging/org.eclipse.jgit.http.apache.feature/feature.properties
+++ b/org.eclipse.jgit.packaging/org.eclipse.jgit.http.apache.feature/feature.properties
@@ -20,7 +20,7 @@
 
 # "copyright" property - text of the "Feature Update Copyright"
 copyright=\
-Copyright (c) 2005, 2013 Shawn Pearce, Robin Rosenberg, et.al.\n\
+Copyright (c) 2005, 2020 Shawn Pearce, Robin Rosenberg, et.al.\n\
 All rights reserved. This program and the accompanying materials\n\
 are made available under the terms of the Eclipse Distribution License v1.0\n\
 which accompanies this distribution, and is available at\n\
diff --git a/org.eclipse.jgit.packaging/org.eclipse.jgit.junit.feature/feature.properties b/org.eclipse.jgit.packaging/org.eclipse.jgit.junit.feature/feature.properties
index acf33a9..fb1de80 100644
--- a/org.eclipse.jgit.packaging/org.eclipse.jgit.junit.feature/feature.properties
+++ b/org.eclipse.jgit.packaging/org.eclipse.jgit.junit.feature/feature.properties
@@ -20,7 +20,7 @@
 
 # "copyright" property - text of the "Feature Update Copyright"
 copyright=\
-Copyright (c) 2010, Matthias Sohn <matthias.sohn@sap.com>\n\
+Copyright (c) 2010, 2020 Matthias Sohn <matthias.sohn@sap.com>\n\
 and other copyright owners as documented in the project's IP log.\n\
 All rights reserved. This program and the accompanying materials\n\
 are made available under the terms of the Eclipse Distribution License v1.0\n\
diff --git a/org.eclipse.jgit.packaging/org.eclipse.jgit.lfs.feature/feature.properties b/org.eclipse.jgit.packaging/org.eclipse.jgit.lfs.feature/feature.properties
index 5d953fa..858ba93 100644
--- a/org.eclipse.jgit.packaging/org.eclipse.jgit.lfs.feature/feature.properties
+++ b/org.eclipse.jgit.packaging/org.eclipse.jgit.lfs.feature/feature.properties
@@ -20,7 +20,7 @@
 
 # "copyright" property - text of the "Feature Update Copyright"
 copyright=\
-Copyright (c) 2015, Matthias Sohn et.al.\n\
+Copyright (c) 2015, 2020 Matthias Sohn et.al.\n\
 All rights reserved. This program and the accompanying materials\n\
 are made available under the terms of the Eclipse Distribution License v1.0\n\
 which accompanies this distribution, and is available at\n\
diff --git a/org.eclipse.jgit.packaging/org.eclipse.jgit.pgm.feature/feature.properties b/org.eclipse.jgit.packaging/org.eclipse.jgit.pgm.feature/feature.properties
index 450cff4..6c1405d 100644
--- a/org.eclipse.jgit.packaging/org.eclipse.jgit.pgm.feature/feature.properties
+++ b/org.eclipse.jgit.packaging/org.eclipse.jgit.pgm.feature/feature.properties
@@ -20,7 +20,7 @@
 
 # "copyright" property - text of the "Feature Update Copyright"
 copyright=\
-Copyright (c) 2005-2012 Shawn Pearce, Robin Rosenberg, et.al.\n\
+Copyright (c) 2005, 2020 Shawn Pearce, Robin Rosenberg, et.al.\n\
 All rights reserved. This program and the accompanying materials\n\
 are made available under the terms of the Eclipse Distribution License v1.0\n\
 which accompanies this distribution, and is available at\n\
diff --git a/org.eclipse.jgit.packaging/org.eclipse.jgit.source.feature/feature.properties b/org.eclipse.jgit.packaging/org.eclipse.jgit.source.feature/feature.properties
index 5043c32..b8e0417 100644
--- a/org.eclipse.jgit.packaging/org.eclipse.jgit.source.feature/feature.properties
+++ b/org.eclipse.jgit.packaging/org.eclipse.jgit.source.feature/feature.properties
@@ -21,7 +21,7 @@
 
 # "copyright" property - text of the "Feature Update Copyright"
 copyright=\
-Copyright (c) 2005, 2010 Shawn Pearce, Robin Rosenberg, et.al.\n\
+Copyright (c) 2005, 2020 Shawn Pearce, Robin Rosenberg, et.al.\n\
 All rights reserved. This program and the accompanying materials\n\
 are made available under the terms of the Eclipse Distribution License v1.0\n\
 which accompanies this distribution, and is available at\n\
diff --git a/org.eclipse.jgit.packaging/org.eclipse.jgit.ssh.apache.feature/feature.properties b/org.eclipse.jgit.packaging/org.eclipse.jgit.ssh.apache.feature/feature.properties
index e412fc2..8c38943 100644
--- a/org.eclipse.jgit.packaging/org.eclipse.jgit.ssh.apache.feature/feature.properties
+++ b/org.eclipse.jgit.packaging/org.eclipse.jgit.ssh.apache.feature/feature.properties
@@ -20,7 +20,7 @@
 
 # "copyright" property - text of the "Feature Update Copyright"
 copyright=\
-Copyright (c) 2018 Thomas Wolf and others.\n\
+Copyright (c) 2018, 2020 Thomas Wolf and others.\n\
 All rights reserved. This program and the accompanying materials\n\
 are made available under the terms of the Eclipse Distribution License v1.0\n\
 which accompanies this distribution, and is available at\n\