comment fixes

diff --git a/automake.in b/automake.in
index 1702f6d..e10e0d4 100755 (executable)
--- a/automake.in
+++ b/automake.in
@@ -4637,8 +4637,8 @@ sub saw_extension
     $extension_seen{$ext} = 1;
 }
 
-# Called to ask whether there source files have been seen . If HEADERS
-# is 1, headers can be included.
+# Called to ask whether source files have been seen . If HEADERS is 1,
+# headers can be included.
 sub saw_sources_p
 {
     local ($headers) = @_;
@@ -4656,7 +4656,9 @@ sub saw_sources_p
 }
 
 # Register a single language.  If LINKER is the empty string, it means
-# to use the C linker.
+# to use the C linker.  DEANSI_P should only be 1 for languages where
+# de-ansi-fication makes sense (i.e., C).  EXTENSIONS is a list of
+# file extensions to match (no `.' included).
 sub register_language
 {
     local ($language, $linker, $deansi_p, @extensions) = @_;