- Fix awk detection

Index: moz.configure
--- moz.configure.orig	2022-03-30 19:25:49 UTC
+++ moz.configure
@@ -708,7 +708,7 @@ add_old_configure_assignment("CLANG_PLUGIN", clang_plu
 
 # Awk detection
 # ==============================================================
-awk = check_prog("AWK", ("gawk", "mawk", "nawk", "awk"))
+awk = check_prog('AWK', ('awk',))
 
 # Until the AWK variable is not necessary in old-configure