Minor source documentation update.

diff --git a/bin/blhc b/bin/blhc
index 34bd55fd29c6d5a7c714ca164b5d79da50c802bf..fa2c507fff10c679a94d277b3b95571bf7cebe31 100755 (executable)
--- a/bin/blhc
+++ b/bin/blhc
@@ -117,6 +117,7 @@ my @object = (
 # Hashes for fast extensions lookup to check if a file falls in one of these
 # categories.
 my %extensions_no_preprocess = map { $_ => 1 } (
+    # There's no @header_no_preprocess.
     @source_no_preprocess,
 );
 my %extensions_preprocess = map { $_ => 1 } (