Use C-style sorting in Bash

Mostly due to ls...

dotfiles/bash/main.bashrc

@@ -73,6 +73,8 @@ mkdir -p "$RV_TMP"
 ### OTHERS ###
 ### '''''' ###
 
+export LC_COLLATE=C     # make sort upper first
+
 export FFOO_PRETTY=color
 
 # make green git bash trinket even cooler