pgm: Handle GitAPIException in Fetch command

This avoids we show a stacktrace on the console by default when this
type of exception is thrown during the run method is executed.

Change-Id: I043838143df7280351186ee1bcca4d1cc4832257
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Fetch.java

@@ -51,6 +51,7 @@ import java.util.List;
 
 import org.eclipse.jgit.api.FetchCommand;
 import org.eclipse.jgit.api.Git;
+import org.eclipse.jgit.api.errors.GitAPIException;
 import org.eclipse.jgit.lib.Constants;
 import org.eclipse.jgit.lib.SubmoduleConfig.FetchRecurseSubmodulesMode;
 import org.eclipse.jgit.lib.TextProgressMonitor;
@@ -168,6 +169,8 @@ class Fetch extends AbstractFetchCommand implements FetchCommand.Callback {
 				return;
 
 			showFetchResult(result);
+		} catch (GitAPIException e) {
+			throw die(e.getMessage(), e);
 		}
 	}