doc-rst: parse-headers: don't do substituition references

Add one extra escape character to avoid those warnings:
	Documentation/linux_tv/videodev2.h.rst:6: WARNING: Inline substitution_reference start-string without end-string.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/Documentation/sphinx/parse-headers.pl b/Documentation/sphinx/parse-headers.pl
index 16ea28b0d2e19978f9c0f5a5d6ecea9faa429829..0a3703bef5eb6687c69fddbd57339c57ddcd7948 100755 (executable)
--- a/Documentation/sphinx/parse-headers.pl
+++ b/Documentation/sphinx/parse-headers.pl
@@ -220,7 +220,7 @@ $data =~ s/\n\s+\n/\n\n/g;
 #
 # Add escape codes for special characters
 #
-$data =~ s,([\_\`\*\<\>\&\\\\:\/]),\\$1,g;
+$data =~ s,([\_\`\*\<\>\&\\\\:\/\|]),\\$1,g;
 
 $data =~ s,DEPRECATED,**DEPRECATED**,g;