fio.1: Correct terse (--minimal) output - page faults

Major and minor page faults were added in commit e7823a941468e

Signed-off-by: Carl Henrik Lunde <chlunde@ping.uio.no>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/fio.1 b/fio.1
index ef5c8d8..554fe50 100644
--- a/fio.1
+++ b/fio.1
@@ -753,7 +753,7 @@
 .P
 CPU usage:
 .RS
-.B user, system, context switches
+.B user, system, context switches, major page faults, minor page faults
 .RE
 .P
 IO depth distribution: