top: utf8 utils should observe indentation conventions

Gosh, all this time we used indents of 4 spaces, not 3
spaces which were always the top standard indentation.

[ and we made our 'utf8_embody' a little more robust ]

Signed-off-by: Jim Warner <james.warner@comcast.net>

top/top.c

@@ -688,12 +688,14 @@ static int utf8_embody (const char *str, int width) {
    const unsigned char *p = (const unsigned char *)str;
    int clen, cnum = 0;
 
+   if (width > 0) {
       while (*p) {
          // -1 represents a decoding error, pretend it's untranslated ...
          if (0 > (clen = UTF8_tab[*p])) return width;
          p += clen;
          if (++cnum >= width) break;
       }
+   }
    return (int)((const char *)p - str);
 } // end: utf8_embody