doc-nits: support out of source execution

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15637)

diff --git a/util/find-doc-nits b/util/find-doc-nits
index 467f551093cdc93a9ebe9496865baebaf80ec040..7244c589e8c6297f743835731d963a5108c6f710 100755 (executable)
--- a/util/find-doc-nits
+++ b/util/find-doc-nits
@@ -1139,7 +1139,7 @@ if ( $opt_c ) {
 
     # Get the lists of generic options.
     my $active = "";
-    open OFH, "apps/include/opt.h"
+    open OFH, catdir($config{sourcedir}, "apps/include/opt.h")
         or die "Can't open apps/include/opt.h to list generic options, $!";
     while ( <OFH> ) {
         chop;