update prezto

.zprezto/modules/utility/README.md

@@ -8,8 +8,8 @@ Settings
 
 ### Highlighting
 
-If you have enabled color globally in *zpreztorc*, you may disable it for certain
-commands.
+If you have enabled color globally in *zpreztorc*, you may disable it for
+certain commands.
 
 To disable `ls` color, add the following line to *zpreztorc*; when coloring is
 disabled, type indicators (\*, /, =>, @, =, |, %) will be appended to entries.
@@ -18,6 +18,12 @@ disabled, type indicators (\*, /, =>, @, =, |, %) will be appended to entries.
 zstyle ':prezto:module:utility:ls' color 'no'
 ```
 
+To disable GNU coreutils `ls` to list directories grouped first, add the following line to *zpreztorc*:
+
+```sh
+zstyle ':prezto:module:utility:ls' dirs-first 'no'
+```
+
 To disable `diff` highlighting, add the following line to *zpreztorc*:
 
 ```sh
@@ -109,7 +115,8 @@ Aliases
 
 ### Resource Usage
 
-  - `df` displays free disk space using human readable units (aliases to `pydf`, if installed).
+  - `df` displays free disk space using human readable units (aliases to `pydf`,
+    if installed).
   - `du` displays disk usage using human readable units.
   - `top` displays information about processes.
   - `topc` displays information about processes sorted by CPU usage.

.zprezto/modules/utility/init.zsh

@@ -73,7 +73,10 @@ fi
 # ls
 if is-callable 'dircolors'; then
   # GNU Core Utilities
-  alias ls='ls --group-directories-first'
+
+  if zstyle -T ':prezto:module:utility:ls' dirs-first; then
+    alias ls="${aliases[ls]:-ls} --group-directories-first"
+  fi
 
   if zstyle -t ':prezto:module:utility:ls' color; then
     # Call dircolors to define colors if they're missing