Make it easier to process merges in a normal buildable directory tree by
allowing the user to specify the base directory of the checkout.

llvm-svn: 271192
diff --git a/llvm/utils/release/merge.sh b/llvm/utils/release/merge.sh
index cc3cda9..01d8079 100755
--- a/llvm/utils/release/merge.sh
+++ b/llvm/utils/release/merge.sh
@@ -35,6 +35,10 @@
             shift
             proj=$1
             ;;
+        --srcdir | -srcdir | -s)
+            shift
+            srcdir=$1
+            ;;
         -h | -help | --help )
             usage
             ;;
@@ -51,6 +55,10 @@
     shift
 done
 
+if [ -z "$srcdir" ]; then
+    srcdir="$proj.src"
+fi
+
 if [ "x$rev" = "x" -o "x$proj" = "x" ]; then
     echo "error: need to specify project and revision"
     echo
@@ -72,7 +80,7 @@
 fi
 svn log -c $rev http://llvm.org/svn/llvm-project/$proj/trunk >> $tempfile 2>&1
 
-cd $proj.src
+cd "$srcdir"
 echo "# Updating tree"
 svn up