fix a stupid bug where some expr don't match, use extended expressions

to simplify things.

infrastructure/build/portslogger

@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 
-# $OpenBSD: portslogger,v 1.12 2004/11/10 10:15:42 espie Exp $
+# $OpenBSD: portslogger,v 1.13 2005/01/08 00:05:16 espie Exp $
 # Copyright (c) 2001 Marc Espie.  All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
@@ -94,12 +94,26 @@ my $ncontext = undef;
 my $context;
 
 while (<>) {
-	if (m/^\=\=\=\>\s+(?:(?:Extracting|Applying distribution patches|\
-Patching|Configuring|Building|Faking installation|Building package|\
-Deinstalling|Cleaning|Dist cleaning|Checking files|\
-Regression check|Updating plist|Updating|\
-Registering installation)\s+for\s+(.*)|\
-Returning to build of\s+(.*)|Installing\s+(.*?)\s+from)/o) {
+	if (m/^\=\=\=\>\s+
+	    (?:
+		(?: Extracting|
+		    Applying\ distribution\ patches|
+		    Patching|
+		    Configuring|
+		    Building|
+		    Faking\ installation|
+		    Building\ package|
+		    Deinstalling|
+		    Cleaning|
+		    Dist\ cleaning|
+		    Checking\ files|
+		    Regression\ check|
+		    Updating\ plist|
+		    Updating|
+		    Registering\ installation)\s+for\s+(.*)|
+		Returning\ to\ build\ of\s+(.*)|
+		Installing\s+(.*?)\s+from)
+	    /ox) {
 		$ncontext = "$1$2$3"; 	# XXX only one alternative matches
 		chomp $ncontext;
 		# register to `master' context.