bin/: Replace usage of assert_arg with assert-arg

1 files changed, 2 insertions, 13 deletions

diff --git a/bin/email b/bin/email
index 3c72086..c16ed62 100755
--- a/bin/email
+++ b/bin/email
@@ -64,19 +64,8 @@ while getopts 's:h' flag; do
 done
 shift $((OPTIND - 1))
 
-assert_arg() {
-	if [ -z "$1" ]; then
-		{
-			printf 'Missing %s.\n' "$2"
-			printf '\n'
-			usage
-		} >&2
-		exit 2
-	fi
-}
-
-assert_arg "${SUBJECT:-}" '-s SUBJECT'
-assert_arg "${1:-}"       'ADDRESS'
+eval "$(assert-arg "${SUBJECT:-}" '-s SUBJECT')"
+eval "$(assert-arg "${1:-}"       'ADDRESS')"
 
 printf 'Subject: %s\n\n%s' \
 	"$(echo "$SUBJECT" | tr -d '\n')" \