Whitespace cleanup

Removes trailing whitespace from all source files.

Signed-off-by: Jonathon Anderson <janderson@ciq.co>

CONTRIBUTORS.md

@@ -4,7 +4,7 @@
 * Christian Goll <cgoll@suse.de> @mslacken
 * Jeremy Siadal <jeremy.c.siadal@intel.com> @jcsiadal
 * Niko Kivel <niko.kivel@psi.ch> @kivel
-* Shannon V. Davidson <svdavidson@charter.net> 
+* Shannon V. Davidson <svdavidson@charter.net>
 * Brian Clemens <brian@ctrliq.com> @brianclemens
 * Michael L. Young <myoung@ciq.co> @ajyounge
 * Ian Kaneshiro <iankane@umich.edu> @ikaneshiro
@@ -12,9 +12,9 @@
 * MatthewHink <matthew_hink@yahoo.com> @MatthewHink
 * WestleyR <westleyr@nym.hush.com> @WestleyK
 * Michael L. Young <elgueromexicano@gmail.com>
-* Yong Qin <yongq@nvidia.com> 
+* Yong Qin <yongq@nvidia.com>
 * Yoshiaki Senda <yoshiaki@live.it>
-* Cooper, Trevor <tcooper@sdsc.edu> 
+* Cooper, Trevor <tcooper@sdsc.edu>
 * Masahiko Ohkubo <masahiko.ohkubo+github@gmail.com>
 * John Hanks <griznog@gmail.com> @griznog
 * Rob Jansen <jansen@cs.umn.edu>