autogen_manpages.sh: Fix the path of virtualenv dir

diff --git a/tools/autogen_manpages.sh b/tools/autogen_manpages.sh
index 96c7005..e6a938f 100755 (executable)
--- a/tools/autogen_manpages.sh
+++ b/tools/autogen_manpages.sh
@@ -17,9 +17,9 @@ done
 
 SCRIPT_DIR=$(cd $(dirname $0) && pwd)
 
-VENV=../$SCRIPT_DIR/../venv
+VENV=$SCRIPT_DIR/../venv
 
-if ! which virtualenv; then
+if ! which virtualenv > /dev/null; then
     echo "virtualenv not found. Make sure to have virtualenv installed."
     exit 2
 fi