help: improve command summary hint

help: improve command summary hint

This adds our normal hint parentheses, corrects the command syntax
(consider config), and corrects the fullness of help you'll get.

--- a/mercurial/help.py	Tue Aug 12 03:01:37 2014 -0500
+++ b/mercurial/help.py	Tue Aug 12 03:09:26 2014 -0500
@@ -293,7 +293,7 @@
 
         if not ui.verbose:
             if not full:
-                rst.append(_('\nuse "hg help %s" to show the full help text\n')
+                rst.append(_('\n(use "hg %s -h" to show more help)\n')
                            % name)
             elif not ui.quiet:
                 rst.append(_('\n(some details hidden, use --verbose '

--- a/tests/test-alias.t	Tue Aug 12 03:01:37 2014 -0500
+++ b/tests/test-alias.t	Tue Aug 12 03:09:26 2014 -0500
@@ -370,7 +370,7 @@
   
   alias for: hg root
   
-  use "hg help rt" to show the full help text
+  (use "hg rt -h" to show more help)
   [255]
 
 invalid global arguments for normal commands, aliases, and shell aliases

--- a/tests/test-dispatch.t	Tue Aug 12 03:01:37 2014 -0500
+++ b/tests/test-dispatch.t	Tue Aug 12 03:09:26 2014 -0500
@@ -29,7 +29,7 @@
   
   [+] marked option can be specified multiple times
   
-  use "hg help cat" to show the full help text
+  (use "hg cat -h" to show more help)
   [255]
 
 [defaults]

--- a/tests/test-extension.t	Tue Aug 12 03:01:37 2014 -0500
+++ b/tests/test-extension.t	Tue Aug 12 03:09:26 2014 -0500
@@ -543,7 +543,7 @@
   
   multirevs command
   
-  use "hg help multirevs" to show the full help text
+  (use "hg multirevs -h" to show more help)
   [255]
 
 

--- a/tests/test-help.t	Tue Aug 12 03:01:37 2014 -0500
+++ b/tests/test-help.t	Tue Aug 12 03:09:26 2014 -0500
@@ -440,7 +440,7 @@
   
   [+] marked option can be specified multiple times
   
-  use "hg help add" to show the full help text
+  (use "hg add -h" to show more help)
   [255]
 
 Test ambiguous command help

--- a/tests/test-qrecord.t	Tue Aug 12 03:01:37 2014 -0500
+++ b/tests/test-qrecord.t	Tue Aug 12 03:09:26 2014 -0500
@@ -99,7 +99,7 @@
   
   interactively record a new patch
   
-  use "hg help qrecord" to show the full help text
+  (use "hg qrecord -h" to show more help)
   [255]
 
 qrecord patch (mq not present)

--- a/tests/test-strip.t	Tue Aug 12 03:01:37 2014 -0500
+++ b/tests/test-strip.t	Tue Aug 12 03:09:26 2014 -0500
@@ -547,5 +547,5 @@
   
   [+] marked option can be specified multiple times
   
-  use "hg help strip" to show the full help text
+  (use "hg strip -h" to show more help)
   [255]