Do not break long lines in git log

dotfiles/bash/main.bashrc

 GIT_PS1_SHOWDIRTYSTATE=true
 GIT_PS1_SHOWUNTRACKEDFILES=true
 GIT_DISABLED_COMMANDS="$HOME/.gittum/disabled-commands"
+export GIT_PAGER='less -S'
 
 # disable mounting things like SFTP to ~/.gvfs when accessed
 # via GIO (used by nautilus etc.)