ConfigEntry: Make constructor public

Now is part of the SuperManifestRepoManager API and tests for
implementations need the constructor.

Change-Id: I405cf32a543602d29631dd19b8166758aaf25088

java/com/googlesource/gerrit/plugins/supermanifest/ConfigEntry.java

diff --git a/java/com/googlesource/gerrit/plugins/supermanifest/ConfigEntry.java b/java/com/googlesource/gerrit/plugins/supermanifest/ConfigEntry.java
index cab19e8..82baf05 100644
--- a/java/com/googlesource/gerrit/plugins/supermanifest/ConfigEntry.java
+++ b/java/com/googlesource/gerrit/plugins/supermanifest/ConfigEntry.java
@@ -45,7 +45,7 @@
   // destBranch can be "*" in which case srcRef is ignored.
   String destBranch;
 
-  ConfigEntry(Config cfg, String name) throws ConfigInvalidException {
+  public ConfigEntry(Config cfg, String name) throws ConfigInvalidException {
     String[] parts = name.split(":");
     if (parts.length != 2) {
       throw new ConfigInvalidException(