Change username to lower case

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23498 a1c6a512-1295-4272-9138-f99709370657
diff --git a/docs/COMMITTERS b/docs/COMMITTERS
index c267359..1d5dfc02 100644
--- a/docs/COMMITTERS
+++ b/docs/COMMITTERS
@@ -18,7 +18,7 @@
 bjst Björn Stenberg
 blue_dude Jeffrey Goode
 bluebrother Dominik Riebeling
-BobC Bob Cousins
+bobc Bob Cousins
 bobthc Arnaud de Bonald
 breaker Uwe Freese
 bryan Bryan Childs