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-rw-r--r--lisp/eshell/em-unix.el9
1 files changed, 4 insertions, 5 deletions
diff --git a/lisp/eshell/em-unix.el b/lisp/eshell/em-unix.el
index 384fa083947..33514d515af 100644
--- a/lisp/eshell/em-unix.el
+++ b/lisp/eshell/em-unix.el
@@ -974,12 +974,11 @@ Show wall-clock time elapsed during execution of COMMAND.")
(if eshell-diff-window-config
(set-window-configuration eshell-diff-window-config)))
-(defun nil-blank-string ( string )
- "if a string is all blanks return nil, if there are non-blank characters
-return the string"
+(defun nil-blank-string (string)
+ "Return STRING, or nil if STRING contains only non-blank characters."
(cond
- ((string-match "[^[:blank:]]" string ) string)
- (nil)))
+ ((string-match "[^[:blank:]]" string) string)
+ (nil)))
(defun eshell/diff (&rest args)
"Alias \"diff\" to call Emacs `diff' function."