[PATCH modular 4/8] build.sh: use more descriptive variable names for check_writable_dir

[Gaetan Nadon]

Reported-by: Peter Hutterer <peter.hutterer at who-t.net>

Signed-off-by: Gaetan Nadon <memsize at videotron.ca>
---
 build.sh |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/build.sh b/build.sh
index 07c7de5..bee76a9 100755
--- a/build.sh
+++ b/build.sh
@@ -1036,9 +1036,11 @@ check_full_path () {
 # returns:
 #   returns nothing or exit on error with message
 check_writable_dir () {
+    dir=$1
+    varname=$2
     if [ X"$SUDO" = X ]; then
-	if [ ! -d "$1" ] || [ ! -w "$1" ]; then
-	    echo "The path \"$1\" supplied by \"$2\" must be a writable directory"
+	if [ ! -d "$dir" ] || [ ! -w "$dir" ]; then
+	    echo "The path \"$dir\" supplied by \"$varname\" must be a writable directory"
 	    echo ""
 	    usage
 	    exit 1
-- 
1.6.0.4