math/octave-forge-base: Update to 1.6.

Make sure that when searching description for lines that begin with
Depends: that it starts at the beginning of the line.

math/octave-forge-base/Makefile

 PORTNAME=	octave-forge-base
-PORTVERSION=	1.5
+PORTVERSION=	1.6
 CATEGORIES=	math
 MASTER_SITES=	#none
 DISTFILES=	#none

math/octave-forge-base/files/load-octave-pkg.in

@@ -98,7 +98,7 @@ while (my $p = <$install_prefix/*>) {
   $p =~ s+.*/++;
   open(D,"$install_prefix/$p/packinfo/DESCRIPTION") || die $!;
   foreach my $l (<D>) {
-    if ($l=~s/Depends:\s*//) {
+    if ($l=~s/^Depends:\s*//) {
       foreach my $ll (split ",",$l) {
         chomp($ll);
         $ll = lc($ll);