[chrome-gnome-shell] cmake: look for 'g' prefixed GNU head binary first.

[Yuri Konotopov <ykonotopov src gnome org>]

commit 23be409676767f726d32f3fbee2b8cfdfb528fef
Author: Yuri Konotopov <ykonotopov gnome org>
Date:   Wed Mar 28 21:50:11 2018 +0400

    cmake: look for 'g' prefixed GNU head binary first.
    
    This commit fixes build error on Solaris 11.4.

 CMakeLists.txt |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f0b3005..caa02b5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -90,7 +90,7 @@ endif(BUILD_MESSAGES AND NOT DEFINED GETTEXT_REPORT_EMAIL)
 if(BUILD_EXTENSION OR BUILD_CONNECTOR)
        find_program_ex(base64 gbase64 FATAL_ERROR)
        find_program_ex(sha256sum gsha256sum FATAL_ERROR)
-       find_program_ex(head ghead FATAL_ERROR)
+       find_program_ex(ghead head FATAL_ERROR)
        find_program_ex(tr gtr FATAL_ERROR)
        find_program_ex(jq FATAL_ERROR)