add homebrew paths in front of system paths

custompkg/root/etc/skel/Library/bashrc.d/100.homebrew-paths.sh

@@ -1,2 +1,2 @@
-export PATH+=":$HOME/Library/Homebrew/bin"
+export PATH="$HOME/Library/Homebrew/sbin:$PATH"
-export PATH+=":$HOME/Library/Homebrew/sbin"
+export PATH="$HOME/Library/Homebrew/bin:$PATH"