curgitb : return the current git branch

Useful/curgitb

@@ -1,9 +1,7 @@
 #!/bin/bash
-current_branch=`git branch | grep \* | cut -d ' ' -f2`
+current_branch=`git branch 2>&1`
-if [ $? -eq 0 ]
+if [ "$current_branch" != 'fatal: not a git repository (or any of the parent directories): .git' ]
 then
-	echo 'Success'
+	current_branch=`echo "$current_branch" | grep \* | cut -d ' ' -f2`
-else
+	echo "($current_branch)"
-	echo 'Failed'
+fi
-fi
-echo $current_branch