Buck: Rename build target to match plugin name

For in tree Buck build to succeed the build target must match the
plugin name (and project name).

Change-Id: Iede27fd199a7f5b44d82285910c4282dd0d5d406
diff --git a/.buckconfig b/.buckconfig
index b69ef92..9fb438a 100644
--- a/.buckconfig
+++ b/.buckconfig
@@ -1,6 +1,7 @@
 [alias]
-  xdocs = //:xdocs
-  plugin = //:xdocs
+  xdocs = //:x-docs
+  x-docs = //:x-docs
+  plugin = //:x-docs
 
 [java]
   src_roots = java, resources
diff --git a/BUCK b/BUCK
index 7a43f6f..393a427 100644
--- a/BUCK
+++ b/BUCK
@@ -1,7 +1,7 @@
 include_defs('//bucklets/gerrit_plugin.bucklet')
 
 gerrit_plugin(
-  name = 'xdocs',
+  name = 'x-docs',
   srcs = glob(['src/main/java/**/*.java']),
   resources = glob(['src/main/resources/**/*']),
   manifest_entries = [
@@ -16,6 +16,6 @@
 # this is required for bucklets/tools/eclipse/project.py to work
 java_library(
   name = 'classpath',
-  deps = [':xdocs__plugin'],
+  deps = [':x-docs__plugin'],
 )