configure: sort AC_CHECK_FUNCS

No functional changes.
diff --git a/configure.ac b/configure.ac
index 2fc9f2f..a6f9066 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3583,8 +3583,10 @@
           #include <sys/types.h>]])
 
 
-AC_CHECK_FUNCS([fnmatch \
+AC_CHECK_FUNCS([\
+  arc4random \
   fchmod \
+  fnmatch \
   fork \
   geteuid \
   getpass_r \
@@ -3604,7 +3606,6 @@
   snprintf \
   utime \
   utimes \
-  arc4random
 ],[
 ],[
   func="$ac_func"