README: document Fedora, RHEL, and CentOS dependencies

Document all build and runtime requirements for xfstests
on Fedora/RHEL/CentOS boxes, as was done earlier for Ubuntu.

Minor other README edits as well.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>

README

@@ -10,6 +10,13 @@ Building Linux:
 		 automake gcc libuuid1 quota attr libattr1-dev make
 		 libacl1-dev libaio-dev xfsprogs libgdbm-dev gawk fio dbench
 		 uuid-runtime"
+	  For Fedora, RHEL, or CentOS:
+		"yum install acl attr awk bc dbench dump e2fsprogs fio gawk
+		 indent lvm2 psmisc quota sed xfsdump xfsprogs
+		 libacl-devel libattr-devel libaio-devel libuuid-devel
+		 openssl-devel xfsprogs-devel btrfs-progs-devel"
+		(Older distributions may require xfsprogs-qa-devel as well.)
+		(Note that for RHEL and CentOS, you may need the EPEL repo.)
 	- run make
 	- run make install
 	- create fsgqa test user ("sudo useradd fsgqa")
@@ -27,8 +34,8 @@ ______________________
 Preparing system for tests (IRIX and Linux):
 
     - compile XFS into your kernel or load XFS modules
-    - install user tools including mkfs.xfs, xfs_db & xfs_bmap
-    - If you wish to run the udf components of the suite install 
+    - install administrative tools specific to the filesystem you wish to test
+    - If you wish to run the udf components of the suite install
       mkfs_udf and udf_db for IRIX and mkudffs for Linux. Also download and 
       build the Philips UDF Verification Software from 
       http://www.extra.research.philips.com/udf/, then copy the udf_test 
@@ -54,6 +61,9 @@ Preparing system for tests (IRIX and Linux):
               SCRATCH_DEV_POOL by xfstests script.
               
     - setup your environment
+	Quick start:
+	- copy config.local.example to config.local and edit as needed
+	Or:
         - setenv TEST_DEV "device containing TEST PARTITION"
         - setenv TEST_DIR "mount point of TEST PARTITION"   
        	- optionally: