fix

Author: adrelanos

usr/bin/gpg-dearmor

@@ -8,8 +8,8 @@ set -o errtrace
 set -o nounset
 set -o pipefail
 
-source_file="$1"
-target_file="$2"
+source_file="${1-}"
+target_file="${2-}"
 
 if [ "$source_file" = "" ] || [ "$target_file" = "" ]; then
   printf '%s\n' "$0: ERROR: syntax: $0 source-file target-file" >&2