From b46c06dea5c2dce43fb780a303b800b5f52ccd55 Mon Sep 17 00:00:00 2001
From: "Richard M. Stallman" <rms@gnu.org>
Date: Wed, 17 Jan 1996 22:41:21 +0000
Subject: [PATCH] (sh-indent-line): Cope if no previous noncomment line.

---
 lisp/progmodes/sh-script.el | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/lisp/progmodes/sh-script.el b/lisp/progmodes/sh-script.el
index 96db28ebf4a..3c744e66ae0 100644
--- a/lisp/progmodes/sh-script.el
+++ b/lisp/progmodes/sh-script.el
@@ -849,11 +849,12 @@ in ALIST."
 Lines containing only comments are considered empty."
   (interactive)
   (let ((previous (save-excursion
-		    (while (progn
-			     (line-move -1)
-			     (back-to-indentation)
-			     (or (eolp)
-				 (eq (following-char) ?#))))
+		    (while (and (not (bobp))
+				(progn
+				  (forward-line -1)
+				  (back-to-indentation)
+				  (or (eolp)
+				      (eq (following-char) ?#)))))
 		    (current-column)))
 	current)
     (save-excursion
-- 
2.39.2