[PATCH v2 1/5] common/btrfs: fix awk field separator in _check_temp_fsid

_check_temp_fsid() extracted the on-disk fsid with "awk -d\" \"",
but -d is gawk's --dump-variables option, not a field separator.
As a result awk tried to open a file named " " for writing and dumped
its variable list, polluting the test output with messages like:

  awk: warning: could not open ' ' for writing: Read-only file system
  awk: warning: sending variable list to standard error
  ARGC: 1
  ARGIND: 0
  ...

which made btrfs/311 (the only test currently exercising this helper)
fail. Use -F" " to set the field separator as intended.

Signed-off-by: Johannes Thumshirn <[email protected]>
---
 common/btrfs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/btrfs b/common/btrfs
index fb7c8378..926f56e5 100644
--- a/common/btrfs
+++ b/common/btrfs
@@ -1014,7 +1014,7 @@ _check_temp_fsid()
 
 	# on disk fsid
 	fsid=$($BTRFS_UTIL_PROG inspect-internal dump-super $dev1 | \
-				grep ^fsid | $AWK_PROG -d" " '{print $2}')
+				grep ^fsid | $AWK_PROG -F" " '{print $2}')
 	echo -e "On disk fsid:\t\t$fsid" | sed -e "s/$fsid/FSID/g"
 
 	# Print FSID even if it is not the same as metadata_uuid because it has
-- 
2.55.0