systemctl: move strv_skip_first() out of systemctl.c

Make it generic, call it strv_skip() and move it to strv.[ch]

1 files changed, 12 insertions, 0 deletions

diff --git a/src/basic/strv.c b/src/basic/strv.c
index 92f900936e..9524e80a6f 100644
--- a/src/basic/strv.c
+++ b/src/basic/strv.c
@@ -733,3 +733,15 @@ char ***strv_free_free(char ***l) {
         free(l);
         return NULL;
 }
+
+char **strv_skip(char **l, size_t n) {
+
+        while (n > 0) {
+                if (strv_isempty(l))
+                        return l;
+
+                l++, n--;
+        }
+
+        return l;
+}