Support showing one revision with Mercurial

* lisp/vc/vc-hg.el (vc-hg-print-log): Support 'with-diff'
invocation of "C-1 C-x v L".

1 files changed, 2 insertions, 0 deletions

diff --git a/lisp/vc/vc-hg.el b/lisp/vc/vc-hg.el
index 5ff1a6204b1..c9407b1b597 100644
--- a/lisp/vc/vc-hg.el
+++ b/lisp/vc/vc-hg.el
@@ -432,6 +432,8 @@ If LIMIT is non-nil, show no more than this many entries."
              (nconc
               (when start-revision (list (format "-r%s:0" start-revision)))
               (when limit (list "-l" (format "%s" limit)))
+              (when (eq vc-log-view-type 'with-diff)
+                (list "-p"))
               (if shortlog
                   `(,@(if vc-hg-log-graph '("--graph"))
                     "--template"