[PATCH v2 1/2] xfs/029: filter out "extended-header: cycle: 1" from output

[Yang Xu <xuyang2018.jy@cn.fujitsu.com>]

When I test this case(default lsunit 256k), this case will fail,
as below:
cycle: 1        version: 2              lsn: 1,0        tail_lsn: 1,0
length of Log Record: 258048    prev offset: -1         num ops: 1

...
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
extended-header: cycle: 1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
...

It reports this info because xfs_logprint only read 32k header every time, so it
needs to read more times. We can filter this useless info.

common/log also has _filter_logprint function. only library function is
prefixed with "_", remove '_'.

Signed-off-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com>
---
 tests/xfs/029 | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tests/xfs/029 b/tests/xfs/029
index f532a21b..dbe700ab 100755
--- a/tests/xfs/029
+++ b/tests/xfs/029
@@ -19,7 +19,7 @@ trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15
 . ./common/rc
 . ./common/filter
 
-_filter_logprint()
+filter_logprint()
 {
 	perl -ne '
 	    s/data device: ([\w|\/.-]+)/data device: DDEV/;
@@ -31,6 +31,8 @@ _filter_logprint()
             s/(length of Log Record:) \d+/$1 <LEN>/;
             s/version: \d/version: <VERN>/;
 	    s/h_size: \d+/h_size: <H_SIZE>/;
+	    s/^~+[\r|\n]+$//;
+	    s/extended-header: cycle: 1[\r|\n]+$//;
 	    print;
 	'
 }
@@ -45,7 +47,7 @@ echo
 _scratch_mkfs_xfs | _filter_mkfs 2>/dev/null
 
 echo
-_scratch_xfs_logprint | _filter_logprint
+_scratch_xfs_logprint | filter_logprint
 
 status=0
 exit
-- 
2.18.0