[evince] shell: Add the "a" shortcut for "automatic" sizing mode

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 3c3cb6cd944282b2fb634b39ca911f12e597e5e5
Author: Stefano Facchini <stefano facchini gmail com>
Date:   Sun Nov 12 14:59:40 2017 +0100

    shell: Add the "a" shortcut for "automatic" sizing mode
    
    Similar to the already existing "f" and "w" for "Page" and "Width",
    respectively.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=790253

 shell/ev-application.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/shell/ev-application.c b/shell/ev-application.c
index 238cf95..6f7b060 100644
--- a/shell/ev-application.c
+++ b/shell/ev-application.c
@@ -1072,6 +1072,7 @@ ev_application_startup (GApplication *gapplication)
           "win.go-forward-history",     "<alt>N", "Forward", NULL,
           "win.sizing-mode::fit-page",  "f", NULL,
           "win.sizing-mode::fit-width", "w", NULL,
+          "win.sizing-mode::automatic", "a", NULL,
           "win.open-menu",              "F10", NULL,
           "win.caret-navigation",       "F7", NULL,
           "win.zoom-in",                "plus", "<Ctrl>plus", "KP_Add", "<Ctrl>KP_Add", "equal", 
"<Ctrl>equal", NULL,