[elpa] externals/detached 11dbd0a990: Improve metadata-git-branch

[ELPA Syncer]

branch: externals/detached
commit 11dbd0a990f51c310bb119ae713b0ca7b10efe82
Author: Niklas Eklund <niklas.eklund@posteo.net>
Commit: Niklas Eklund <niklas.eklund@posteo.net>

    Improve metadata-git-branch
    
    Make sure the exit code is 0 in order to use the branch name returned
    by the git command.
---
 detached.el | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/detached.el b/detached.el
index 373efc52cf..77b5fa859d 100644
--- a/detached.el
+++ b/detached.el
@@ -1295,12 +1295,13 @@ If event is cased by an update to the `detached' 
database, re-initialize
 
 (defun detached--metadata-git-branch ()
   "Return current git branch."
-  (let ((args '("symbolic-ref" "HEAD" "--short")))
+  (let ((args '("symbolic-ref" "HEAD" "--short"))
+        (process-file-return-signal-string t))
     (with-temp-buffer
-      (apply #'process-file `("git" nil t nil ,@args))
-      (unless (bobp)
-        (goto-char (point-min))
-        (buffer-substring-no-properties (point) (line-end-position))))))
+      (when (= 0 (apply #'process-file `("git" nil t nil ,@args)))
+        (unless (bobp)
+          (goto-char (point-min))
+          (buffer-substring-no-properties (point) (line-end-position)))))))
 
 ;;;;; UI