[vte] build: Silence a compiler warning

[Christian Persch <chpe src gnome org>]

commit 392e68ab37dddaccd9d5c2e215129536dd531804
Author: Christian Persch <chpe src gnome org>
Date:   Mon Mar 20 21:56:32 2017 +0100

    build: Silence a compiler warning
    
    -Wmaybe-uninitialized erroneously complains about start_time.

 src/vtespawn.cc |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/vtespawn.cc b/src/vtespawn.cc
index 35f7678..df6e23b 100644
--- a/src/vtespawn.cc
+++ b/src/vtespawn.cc
@@ -633,7 +633,7 @@ read_ints (int      fd,
   gsize bytes = 0;
   GPollFD pollfds[2];
   guint n_pollfds;
-  gint64 start_time;
+  gint64 start_time = 0;
 
   if (timeout >= 0 || cancellable_pollfd != NULL)
     {