Trivial changes: whitespace and modes.

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>

src/cmd/auth/rsa2pub.c

@@ -35,7 +35,7 @@ main(int argc, char **argv)
 		sysfatal("%r");
 
 	s = smprint("key %A size=%d ek=%lB n=%lB\n",
-		a, 
+		a,
 		mpsignif(key->pub.n), key->pub.ek, key->pub.n);
 	if(s == nil)
 		sysfatal("smprint: %r");