Refer to -help instead of --help since this is what tools themselves say.
Also, have tools output -help-hidden rather than refer to --help-hidden,
for consistency, and likewise adjust documentation.  This doesn't change
every mention of --help, only those which seemed clearly safe.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96578 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/WritingAnLLVMPass.html b/docs/WritingAnLLVMPass.html
index f531a74..83de4f9 100644
--- a/docs/WritingAnLLVMPass.html
+++ b/docs/WritingAnLLVMPass.html
@@ -377,10 +377,10 @@
 <tt>/dev/null</tt>).</p>
 
 <p>To see what happened to the other string you registered, try running
-<tt>opt</tt> with the <tt>--help</tt> option:</p>
+<tt>opt</tt> with the <tt>-help</tt> option:</p>
 
 <div class="doc_code"><pre>
-$ opt -load ../../../Debug/lib/Hello.so --help
+$ opt -load ../../../Debug/lib/Hello.so -help
 OVERVIEW: llvm .bc -&gt; .bc modular optimizer
 
 USAGE: opt [options] &lt;input bitcode&gt;
@@ -970,7 +970,7 @@
 parameters.  The first parameter is the name of the pass that is to be used on
 the command line to specify that the pass should be added to a program (for
 example, with <tt>opt</tt> or <tt>bugpoint</tt>).  The second argument is the
-name of the pass, which is to be used for the <tt>--help</tt> output of
+name of the pass, which is to be used for the <tt>-help</tt> output of
 programs, as
 well as for debug output generated by the <tt>--debug-pass</tt> option.</p>
 
@@ -1410,7 +1410,7 @@
 options that is useful for debugging pass execution, seeing how things work, and
 diagnosing when you should be preserving more analyses than you currently are
 (To get information about all of the variants of the <tt>--debug-pass</tt>
-option, just type '<tt>opt --help-hidden</tt>').</p>
+option, just type '<tt>opt -help-hidden</tt>').</p>
 
 <p>By using the <tt>--debug-pass=Structure</tt> option, for example, we can see
 how our <a href="#basiccode">Hello World</a> pass interacts with other passes.
@@ -1625,10 +1625,10 @@
 </pre></div>
 
 <p>Note the two spaces prior to the help string produces a tidy result on the
---help query.</p>
+-help query.</p>
 
 <div class="doc_code"><pre>
-$ llc --help
+$ llc -help
   ...
   -regalloc                    - Register allocator to use: (default = linearscan)
     =linearscan                -   linear scan register allocator