[PATCH v8 04/10] common: add _filter_trailing_whitespace

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The command 'btrfs inspect-internal dump-tree -t raid_stripe'
introduces trailing whitespace in its output.
Apply a filter to remove it. Used in btrfs/30[4-8][.out].

Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx>
---
 common/filter | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/common/filter b/common/filter
index 509ee95039ac..36d51bd957dd 100644
--- a/common/filter
+++ b/common/filter
@@ -651,5 +651,10 @@ _filter_bash()
 	sed -e "s/^bash: line 1: /bash: /"
 }
 
+_filter_trailing_whitespace()
+{
+	sed -E -e "s/\s+$//"
+}
+
 # make sure this script returns success
 /bin/true
-- 
2.38.1





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