Merge pull request #395 from trapexit/utime-omit

enable utime_omit_ok flag

src/mergerfs.cpp

@@ -75,6 +75,7 @@ namespace local
     ops.flag_nopath        = false;
 #endif
     ops.flag_nullpath_ok   = false;
+    ops.flag_utime_omit_ok = true;
 
     ops.access      = mergerfs::fuse::access;
     ops.bmap        = NULL;