[gnome-terminal] screen: Fix memory corruption problem

[Christian Persch <chpe src gnome org>]

commit 48457f4d915c5df9bccc78c61063563de1ea1883
Author: Christian Persch <chpe gnome org>
Date:   Tue Dec 15 20:51:25 2015 +0100

    screen: Fix memory corruption problem
    
    The memory passed must be zeroed first, or we'll crash later
    when g_free()ing the matches.

 src/terminal-screen.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/terminal-screen.c b/src/terminal-screen.c
index 6caaf47..8d69f27 100644
--- a/src/terminal-screen.c
+++ b/src/terminal-screen.c
@@ -1937,6 +1937,7 @@ terminal_screen_check_extra (TerminalScreen *screen,
   gboolean flavor_number_found = FALSE;
 
   matches = g_newa (char *, n_extra_regexes);
+  memset(matches, 0, sizeof(char*) * n_extra_regexes);
 
   if (
 #ifdef WITH_PCRE2