Harmonize build rule names to use hyphen instead of underscore

Change-Id: I31a4435d3f26edb6e9adbecdd88d8a9cedca8c0b

lib/jgit/BUILD

diff --git a/lib/jgit/BUILD b/lib/jgit/BUILD
index bd8c100..f2c7435 100644
--- a/lib/jgit/BUILD
+++ b/lib/jgit/BUILD
@@ -4,12 +4,12 @@
 
 java_library(
     name = "jgit-servlet",
-    exports = ["@jgit_servlet//jar"],
+    exports = ["@jgit-servlet//jar"],
 )
 
 java_library(
     name = "jgit",
-    exports = ["@jgit_lib//jar"],
+    exports = ["@jgit-lib//jar"],
 )
 
 java_library(
@@ -23,20 +23,20 @@
 
 java_library(
     name = "tukaani-xz",
-    exports = ["@tukaani_xz//jar"],
+    exports = ["@tukaani-xz//jar"],
 )
 
 java_library(
     name = "commons-compress",
-    exports = ["@commons_compress//jar"],
+    exports = ["@commons-compress//jar"],
 )
 
 java_library(
     name = "jgit-archive_library",
-    exports = ["@jgit_archive//jar"],
+    exports = ["@jgit-archive//jar"],
 )
 
 java_library(
     name = "junit",
-    exports = ["@jgit_junit//jar"],
+    exports = ["@jgit-junit//jar"],
 )