perf ui scripts: Switch FILENAME_MAX to NAME_MAX

FILENAME_MAX is the same as PATH_MAX (4kb) in glibc rather than
NAME_MAX's 255. Switch to using NAME_MAX and ensure the '\0' is
accounted for in the path's buffer size.

Signed-off-by: Ian Rogers <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Namhyung Kim <[e-mail]>

tools/perf/ui/browsers/scripts.c

···
 	FILE *fp;
 
 	{
-		char filename[FILENAME_MAX + 5];
+		char filename[NAME_MAX + 5];
 		int fd;
 
 		scnprintf(filename, sizeof(filename), "bin/%s-record", scriptname);