change cat direct by builder

diff --git a/builder/builder b/builder/builder
index aa0df876e851a1d08e24ca167af5445c167f25c2..01b8bb24a5d7d66c18e77920048198ff4aec4a97 100755 (executable)
--- a/builder/builder
+++ b/builder/builder
@@ -5,8 +5,7 @@ create_containerfile()
        local distro="$1"
        local distro_postfix="$2"
 
-       cat builder/Containerfile.template \
-               | sed "s/\$distro/\"$distro\"/" \
+       sed "s/\$distro/\"$distro\"/" builder/Containerfile.template \
                > build/Containerfile-"$distro_postfix" \
                || return $?
 }