[PATCH] base.bbclass: Use bb.plain to print the build header

[Richard Purdie <richard.purdie@linuxfoundation.org>]

If we just use print, the bitbake logging functions don't see the message
and it can get lost if bitbake is for example logging messages to disk.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
index ba1f230..72196d6 100644
--- a/meta/classes/base.bbclass
+++ b/meta/classes/base.bbclass
@@ -232,7 +232,7 @@ python base_eventhandler() {
 
 		statuslines += layers_branch_rev
 		statusmsg = "\nOE Build Configuration:\n%s\n" % '\n'.join(statuslines)
-		print statusmsg
+		bb.plain(statusmsg)
 
 		needed_vars = [ "TARGET_ARCH", "TARGET_OS" ]
 		pesteruser = []