Merge pull request itanium-cxx-abi#52 from epilk/fix-bnf

Fix a typo: := should be ::=

Author: rjmccall

abi.html

@@ -5323,11 +5323,11 @@ <h4><a href="#mangling-scope">5.1.7 Scope Encoding</a></h4>
 relative to the function, and an optional discriminator within the
 function:
 
-<code><pre><font color=blue>  &lt;<a name="mangle.local-name">local-name</a>&gt; := Z &lt;<i>function</i> <a href="#mangle.encoding">encoding</a>&gt; E &lt;<i>entity</i> <a href="#mangle.name">name</a>&gt; [&lt;<a href="#mangle.discriminator">discriminator</a>&gt;]
-               := Z &lt;<i>function</i> <a href="#mangle.encoding">encoding</a>&gt; E s [&lt;<a href="#mangle.discriminator">discriminator</a>&gt;]
+<code><pre><font color=blue>  &lt;<a name="mangle.local-name">local-name</a>&gt; ::= Z &lt;<i>function</i> <a href="#mangle.encoding">encoding</a>&gt; E &lt;<i>entity</i> <a href="#mangle.name">name</a>&gt; [&lt;<a href="#mangle.discriminator">discriminator</a>&gt;]
+               ::= Z &lt;<i>function</i> <a href="#mangle.encoding">encoding</a>&gt; E s [&lt;<a href="#mangle.discriminator">discriminator</a>&gt;]
 
-  &lt;<a name="mangle.discriminator">discriminator</a>&gt; := _ &lt;<i>non-negative</i> <a href="#mangle.number">number</a>&gt;      # when number < 10
-                  := __ &lt;<i>non-negative</i> <a href="#mangle.number">number</a>&gt; _   # when number >= 10
+  &lt;<a name="mangle.discriminator">discriminator</a>&gt; ::= _ &lt;<i>non-negative</i> <a href="#mangle.number">number</a>&gt;      # when number < 10
+                  ::= __ &lt;<i>non-negative</i> <a href="#mangle.number">number</a>&gt; _   # when number >= 10
 </font></pre></code>
 
 <p>The enclosing function is the closest function enclosing the
@@ -5523,7 +5523,7 @@ <h4><a href="#closure-types">5.1.8 Closure Types (Lambdas)</a></h4>
 <p>
 If the context is a default argument (of a member function parameter)
 appearing in a class definition, the closure class and its members are encoded as follows:
-<code><pre><font color=blue>  &lt;<a href="#mangle.local-name">local-name</a>&gt; := Z &lt;<i>function</i> <a href="#mangle.encoding">encoding</a>&gt; Ed [ &lt;<i>parameter</i> <a href="#mangle.number">number</a>&gt; ] _ &lt;<i>entity</i> <a href="#mangle.name">name</a>&gt;
+<code><pre><font color=blue>  &lt;<a href="#mangle.local-name">local-name</a>&gt; ::= Z &lt;<i>function</i> <a href="#mangle.encoding">encoding</a>&gt; Ed [ &lt;<i>parameter</i> <a href="#mangle.number">number</a>&gt; ] _ &lt;<i>entity</i> <a href="#mangle.name">name</a>&gt;
 </font></pre></code>
 The parameter number is omitted for the last parameter, 0 for the second-to-last parameter, 1 for the third-to-last parameter, etc. 
 The <code>&lt;<i>entity</i> <a href="#mangle.name">name</a>&gt;</code> will of course contain a
@@ -5551,7 +5551,7 @@ <h4><a href="#closure-types">5.1.8 Closure Types (Lambdas)</a></h4>
 member (static or nonstatic), inline variable, or variable template,
 it is encoded in a qualified name with a
 final <code>&lt;<a href="#mangle.prefix">prefix</a>&gt;</code> of the form:
-<code><pre><font color=blue>  &lt;data-member-prefix&gt; := &lt;<i>member</i> <a href="#mangle.source-name">source-name</a>&gt; [&lt;<a href="#mangle.template-args">template-args</a>&gt;] M
+<code><pre><font color=blue>  &lt;data-member-prefix&gt; ::= &lt;<i>member</i> <a href="#mangle.source-name">source-name</a>&gt; [&lt;<a href="#mangle.template-args">template-args</a>&gt;] M
 </font></pre></code>
 where the <code>&lt;<a href="#mangle.template-args">template-args</a>&gt;</code>
 is present for a closure type within a variable template specialization