[vala] linux: add sethostname(2)

[Michael Lauer <mlauer src gnome org>]

commit c13a0d940099582c0a4a6b7d9d8780564321e3e1
Author: Michael 'Mickey' Lauer <mickey vanille-media de>
Date:   Fri May 7 11:10:29 2010 +0200

    linux: add sethostname(2)

 vapi/linux.vapi |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/vapi/linux.vapi b/vapi/linux.vapi
index bd0eb8f..3a81bfb 100644
--- a/vapi/linux.vapi
+++ b/vapi/linux.vapi
@@ -712,6 +712,9 @@ namespace Linux {
     [CCode (cheader_filename = "execinfo.h")]
     public void backtrace_symbols_fd (void* buffer, int size, int fd);
 
+    [CCode (cheader_filename = "unistd.h")]
+    public int sethostname (char[] name);
+
     [CCode (cheader_filename = "arpa/inet.h")]
     public int inet_aton (string cp, out Posix.InAddr addr);