Remote whitespace at the ends of lines. Remove blank lines from the ends of files. Change modes on source files so that they are not executable. Signed-off-by: Dan Cross <cross@gajendra.net>

Change-Id: I6eaeebc9b6a4d78ce07efe7680ba8f2eff16462f Reviewed-on: https://plan9port-review.googlesource.com/1230 Reviewed-by: Minux Ma <minux@golang.org> Reviewed-by: Russ Cox <rsc@google.com>

Fix compilation problems, libdraw still doesn't work right yet. LGTM=rsc R=rsc https://codereview.appspot.com/67820046

R=rsc http://codereview.appspot.com/6749053

Fix build error and warning on OpenBSD 5.1, as reported by Dimitri Sokolyuk. R=rsc http://codereview.appspot.com/6350044

http://codereview.appspot.com/116096

http://codereview.appspot.com/116073

More changes.