[wwwdocs] gcc-7/changes.html editorial changes

[Gerald Pfeifer]

Spell GCC (not gcc) and front end (instead of frontend).

Applied.

Gerald

Index: changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-7/changes.html,v
retrieving revision 1.99
diff -u -r1.99 changes.html
--- changes.html	1 Feb 2018 08:08:08 -0000	1.99
+++ changes.html	1 Apr 2018 22:54:13 -0000
@@ -184,8 +184,8 @@
 
 <p>Support for processing BRIG 1.0 files was added in this release.
 BRIG is a binary format for HSAIL (Heterogeneous System Architecture
-Intermediate Language). The BRIG frontend can be used for implementing
-HSAIL "finalizers" (compilation of HSAIL to a native ISA) for gcc-supported
+Intermediate Language). The BRIG front end can be used for implementing
+HSAIL "finalizers" (compilation of HSAIL to a native ISA) for GCC-supported
 targets. An implementation of an HSAIL runtime library, libhsail-rt is
 also included.</p>
 
@@ -237,7 +237,7 @@
 	is enabled by <code>-Wall</code>.</li>
   </ul>
 </li>
-  <li>GCC 6's C and C++ frontends were able to offer suggestions for
+  <li>GCC 6's C and C++ front ends were able to offer suggestions for
       misspelled field names:
       <blockquote><pre>
 <b>spellcheck-fields.cc:52:13:</b> <span class="boldred">error:</span> <b>'struct s'</b> has no member named <b>'colour'</b>; did you mean <b>'color'</b>?
@@ -274,7 +274,7 @@
             <span class="boldred">^~~~~~</span>
             <span class="green">signed</span>
 </pre></blockquote>
-      and, in the C frontend, named initializers:
+      and, in the C front end, named initializers:
 <blockquote><pre>
 <b>test.c:7:20:</b> <span class="boldred">error:</span> <b>'struct s'</b> has no member named <b>'colour'</b>; did you mean <b>'color'</b>?
  struct s test = { .<span class="boldred">colour</span> = 3 };