Use patch -p1 instead of patch -fp1
Use patch -p1 instead of patch -fp1

See issue #6666.  -f is not in POSIX, and if the patch is valid, then
-p1 works just fine.

JackieXie168/rethinkdb,JackieXie168/rethinkdb,JackieXie168/rethinkdb,JackieXie168/rethinkdb,JackieXie168/rethinkdb,JackieXie168/rethinkdb,JackieXie168/rethinkdb,JackieXie168/rethinkdb,JackieXie168/rethinkdb