Avoid using string interpolation; use printf format strings instead.

This involves extending the signature of lib/common.sh's `stat_busy()`,
`lock()`, and `slock()`. The `mesg=$1; shift` in stat_busy even suggests
that this is what was originally intended from it.

1 files changed, 1 insertions, 1 deletions

diff --git a/mkarchroot.in b/mkarchroot.in
index 21a7727..1265335 100644
--- a/mkarchroot.in
+++ b/mkarchroot.in
@@ -31,7 +31,7 @@ while getopts 'hC:M:c:' arg; do
 		M) makepkg_conf="$OPTARG" ;;
 		c) cache_dir="$OPTARG" ;;
 		h|?) usage ;;
-		*) error "invalid argument '$arg'"; usage ;;
+		*) error "invalid argument '%s'" "$arg"; usage ;;
 	esac
 done
 shift $(($OPTIND - 1))