SubmoduleConfig: Simplify #toConfigValue

Just return configValue instead of transforming name().

Change-Id: I7f94ab2e206e93d1370467e187c5e68e8f6a8836
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

org.eclipse.jgit/src/org/eclipse/jgit/lib/SubmoduleConfig.java

@@ -43,8 +43,6 @@
 
 package org.eclipse.jgit.lib;
 
-import java.util.Locale;
-
 import org.eclipse.jgit.util.StringUtils;
 
 /**
@@ -79,7 +77,7 @@ public class SubmoduleConfig {
 
 		@Override
 		public String toConfigValue() {
-			return name().toLowerCase(Locale.ROOT).replace('_', '-');
+			return configValue;
 		}
 
 		@Override