[gimp] app: put the call to gimp_gui_ungrab() back in gimp_eek()

[Michael Natterer <mitch src gnome org>]

commit 5b2dd00fab885f691021b8ea71717c1181497e49
Author: Michael Natterer <mitch gimp org>
Date:   Sun May 13 13:49:33 2018 +0200

    app: put the call to gimp_gui_ungrab() back in gimp_eek()
    
    It got lost while improving our error handling.

 app/errors.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/app/errors.c b/app/errors.c
index d88590a..4996fd1 100644
--- a/app/errors.c
+++ b/app/errors.c
@@ -409,6 +409,9 @@ gimp_eek (const gchar *reason,
                   sigemptyset (&sigset);
                   sigprocmask (SIG_SETMASK, &sigset, NULL);
 
+                  if (the_errors_gimp)
+                    gimp_gui_ungrab (the_errors_gimp);
+
                   gimp_stack_trace_query ((const gchar *) full_prog_name);
                 }
               break;