kiss: check for the first argument

Instead of 'intense' shell arithmethic, we could just check if the first
argument is available. This is much more easier to read and understand.
It doesn't affect the speed of execution either.

FossilOrigin-Name: 094587846e53fd489217584615fe392b9245876227723b8b63fd3cb969becb7b

1 files changed, 2 insertions, 3 deletions

diff --git a/kiss b/kiss
index 10e844d..11848a6 100755
--- a/kiss
+++ b/kiss
@@ -1223,9 +1223,8 @@ args() {
     # the arguments that follow are all package names.
     action=$1
 
-    # 'dash' exits on error here if 'shift' is used and there are zero
-    # arguments despite trapping the error ('|| :').
-    shift "$(($# > 0 ? 1 : 0))"
+    # 'dash' gives an error when shift is used without any arguments.
+    [ "$1" ] && shift
 
     # Unless this is a search, sanitize the user's input. The call to
     # 'pkg_find()' supports basic globbing, ensure input doesn't expand