[gnome-shell] Use /proc/self/cmdline on Solaris as well in shell_global_reexec_self()

[Florian Müllner <fmuellner src gnome org>]

commit ddfdfaed785e9ef4291a2bd921009a79191ff760
Author: Alan Coopersmith <alan coopersmith oracle com>
Date:   Sat Sep 24 11:06:00 2016 -0700

    Use /proc/self/cmdline on Solaris as well in shell_global_reexec_self()
    
    Solaris 11.3.5 and later have a Linux-compatible implementation of
    /proc/self/cmdline, so the code to use it can be enabled in gnome-shell
    on Solaris - if used on an older OS, it simply fails to open the file
    and returns without doing anything, just as the code did before enabling
    this.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=776199
    
    Signed-off-by: Alan Coopersmith <alan coopersmith oracle com>

 src/shell-global.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/shell-global.c b/src/shell-global.c
index 3f9ee8d..b306694 100644
--- a/src/shell-global.c
+++ b/src/shell-global.c
@@ -1258,7 +1258,7 @@ shell_global_reexec_self (ShellGlobal *global)
   GPtrArray *arr;
   gsize len;
 
-#if defined __linux__
+#if defined __linux__ || defined __sun
   char *buf;
   char *buf_p;
   char *buf_end;