[PATCH] tools: bootconfig: Regex brackets need escape

[Bhaskar Chowdhury <unixbhaskar@gmail.com>]

It was showing malformed syntax colors below those lines,escaping the posix
class brackets bring back the syntatic reference back.

Oh, malformed syntax colors means,(in a editor,in this case Vim, where syntax
highlight is on). In essence, it might complain while running the script.

Hence, this trivialities.

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
---
 tools/bootconfig/test-bootconfig.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/bootconfig/test-bootconfig.sh b/tools/bootconfig/test-bootconfig.sh
index a2c484c243f5..211409539737 100755
--- a/tools/bootconfig/test-bootconfig.sh
+++ b/tools/bootconfig/test-bootconfig.sh
@@ -167,8 +167,8 @@ echo > $INITRD

 xpass $BOOTCONF -a $TEMPCONF $INITRD
 $BOOTCONF $INITRD > $OUTFILE
-xfail grep -q val[[:space:]] $OUTFILE
-xpass grep -q val2[[:space:]] $OUTFILE
+xfail grep -q val\[\[:space:\]\] $OUTFILE
+xpass grep -q val2\[\[:space:\]\] $OUTFILE

 echo "=== expected failure cases ==="
 for i in samples/bad-* ; do
--
2.49.0