automake: Update 'read_am_file' docstring.

* bin/automake.in (read_am_file): Update docstring which was referring
to a non existent '%contents' variable.

diff --git a/bin/automake.in b/bin/automake.in
index 221d7d31f0e546d23d9e19993fed77151ee72e51..d356336c3f5ade81dfe04d7e886741e15cd4d818 100644 (file)
--- a/bin/automake.in
+++ b/bin/automake.in
@@ -6208,10 +6208,13 @@ sub check_trailing_slash ($\$)
 
 # read_am_file ($AMFILE, $WHERE, $RELDIR)
 # ---------------------------------------
-# Read Makefile.am and set up %contents.  Simultaneously copy lines
-# from Makefile.am into $output_trailer, or define variables as
-# appropriate.  NOTE we put rules in the trailer section.  We want
-# user rules to come after our generated stuff.
+# Read $AMFILE file name which is located in $RELDIR, and set up
+# global variables resetted by '&generate_makefile'.  Simultaneously
+# copy lines from $AMFILE into '$output_trailer', or define variables
+# as appropriate.
+#
+# NOTE: We put rules in the trailer section.  We want user rules to
+# come after our generated stuff.
 sub read_am_file
 {
     my ($amfile, $where, $reldir) = @_;