add: mention .hgignore in help

mercurial/commands.py

@@ -193,7 +193,8 b' def add(ui, repo, *pats, **opts):'
     The files will be added to the repository at the next commit. To
     undo an add before that, see :hg:`forget`.
 
-    If no names are given, add all files to the repository.
+    If no names are given, add all files to the repository (except
+    files matching ``.hgignore``).
 
     .. container:: verbose
 

tests/test-help.t

@@ -347,7 +347,8 b' Test short command list with verbose opt'
       The files will be added to the repository at the next commit. To undo an
       add before that, see "hg forget".
   
-      If no names are given, add all files to the repository.
+      If no names are given, add all files to the repository (except files
+      matching ".hgignore").
   
       Returns 0 if all files are successfully added.
   
@@ -372,7 +373,8 b' Verbose help for add'
       The files will be added to the repository at the next commit. To undo an
       add before that, see "hg forget".
   
-      If no names are given, add all files to the repository.
+      If no names are given, add all files to the repository (except files
+      matching ".hgignore").
   
       Examples:
   
@@ -2202,7 +2204,8 b' Dish up an empty repo; serve it cold.'
   undo an add before that, see "hg forget".
   </p>
   <p>
-  If no names are given, add all files to the repository.
+  If no names are given, add all files to the repository (except
+  files matching &quot;.hgignore&quot;).
   </p>
   <p>
   Examples: