C indenting: colon inside comment causes word to be treated like a label

```
In the following code sample the second comment is indented incorrectly:

#v+
    void
func(void)
{
    int abc; /* comment
              * NOTE: this is indented correctly. */
    int def; /* comment
NOTE: this is not indented correctly.
This is due to the colon following NOTE. */
}
#v-
```

Original issue reported on code.google.com by `lech.lor...@gmail.com` on 13 Dec 2011 at 10:18
