fix: expand `--all` help

Copied the extra line from man/eza.1.md into rest of help/completion files

completions/zsh/_eza

@@ -26,7 +26,7 @@ __eza() {
         --hyperlink"[Display entries as hyperlinks]" \
         --group-directories-first"[Sort directories before other files]" \
         --git-ignore"[Ignore files mentioned in '.gitignore']" \
-        {-a,--all}"[Show hidden and 'dot' files]" \
+        {-a,--all}"[Show hidden and 'dot' files. Use this twice to also show the '.' and '..' directories]" \
         {-d,--list-dirs}"[List directories like regular files]" \
         {-D,--only-dirs}"[List only directories]" \
         {-L,--level}"+[Limit the depth of recursion]" \

src/options/help.rs

@@ -28,7 +28,7 @@ DISPLAY OPTIONS
   -w, --width COLS   set screen width in columns
 
 FILTERING AND SORTING OPTIONS
-  -a, --all                  show hidden and 'dot' files
+  -a, --all                  show hidden and 'dot' files. Use this twice to also show the '.' and '..' directories
   -d, --list-dirs            list directories as files; don't list their contents
   -L, --level DEPTH          limit the depth of recursion
   -r, --reverse              reverse the sort order

xtests/outputs/help.ansitxt

@@ -19,7 +19,7 @@ DISPLAY OPTIONS
   --no-icons         don't display icons (always overrides --icons)
 
 FILTERING AND SORTING OPTIONS
-  -a, --all                  show hidden and 'dot' files
+  -a, --all                  show hidden and 'dot' files. Use this twice to also show the '.' and '..' directories
   -d, --list-dirs            list directories as files; don't list their contents
   -L, --level DEPTH          limit the depth of recursion
   -r, --reverse              reverse the sort order