[clang-format] Fix documentation for SpaceAfterCStyleCast option

[EricMarti]

Summary

I noticed that the example for SpaceAfterCStyleCast does not match its description. I fixed the example after testing it out.

[krasimir]

This rst file is generated from include/clang/Format/Format.h using docs/tools/dump_format_style.py. Update it there and run the tool to regenerate the .rst file.

[EricMarti]

Updated the comment in Format.h and ran the python script. Looks like a few more changes got pulled into the rst file.

[krasimir]

Thank you!

[EricMarti]

I cannot commit this patch myself, as I do not have commit access.

[krasimir]

I'll commit this for you.

docs/ClangFormatStyleOptions.rst

   .. code-block:: c++
 
      true:                                  false:
-     (int)i;                        vs.     (int) i;
+     (int) i;                       vs.     (int)i;
 
 **SpaceAfterTemplateKeyword** (``bool``)
   If ``true``, a space will be inserted after the 'template' keyword.