[nongnu] elpa/dockerfile-mode 448b7ced29 2/2: Simplify checking line emptiness

[ELPA Syncer]

branch: elpa/dockerfile-mode
commit 448b7ced29ae393ce4f0a3fa524cedc3631c7218
Author: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Commit: Drew Csillag <drew@thecsillags.com>

    Simplify checking line emptiness
    
    Rather than doing skips and arithmetics (and also hardcoding the empty
    space — note that there's more "empty" code characters than just tabs
    and spaces), let's just have a single "empty line" regexp.
---
 dockerfile-mode.el | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/dockerfile-mode.el b/dockerfile-mode.el
index 48fc11db9b..b5657857ea 100644
--- a/dockerfile-mode.el
+++ b/dockerfile-mode.el
@@ -160,8 +160,7 @@ by `dockerfile-enable-auto-indent'."
              '(font-lock-comment-delimiter-face font-lock-keyword-face))
      (save-excursion
        (beginning-of-line)
-       (skip-chars-forward "[ \t]" (point-at-eol))
-       (unless (equal (point) (point-at-eol)) ; Ignore empty lines.
+       (unless (looking-at-p "\\s-*$") ; Ignore empty lines.
          (indent-line-to dockerfile-indent-offset))))))
 
 (defun dockerfile-build-arg-string ()