scripts/get_abi: change the file/line number meta info

In order to make it more standard and ReST compatible,
change the meta-tag used with --enable-lineno from:

#define LINENO

to
.. LINENO

In practice, no functional changes.

Signed-off-by: Mauro Carvalho Chehab <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jonathan Corbet <[e-mail]>

Documentation/sphinx/kernel_abi.py

···
                 code_block += "\n    " + l
             lines = code_block + "\n\n"
 
-        line_regex = re.compile("^#define LINENO (\S+)\#([0-9]+)$")
+        line_regex = re.compile("^\.\. LINENO (\S+)\#([0-9]+)$")
         ln = 0
         n = 0
         f = fname

scripts/get_abi.pl

···
 		my @filepath = split / /, $data{$what}->{filepath};
 
 		if ($enable_lineno) {
-			printf "#define LINENO %s%s#%s\n\n",
+			printf ".. LINENO %s%s#%s\n\n",
 			       $prefix, $file[0],
 			       $data{$what}->{line_no};
 		}
···
 
 =item B<--enable-lineno>
 
-Enable output of #define LINENO lines.
+Enable output of .. LINENO lines.
 
 =item B<--debug> I<debug level>