icons: fixes gimp-char-picker.

gimp-char-picker: librsvg is quite buggy and returns wrong dimensions
for paths with only 2 points.
See https://bugzilla.gnome.org/show_bug.cgi?id=760112

icons/Symbolic/scalable.svg

@@ -10393,7 +10393,7 @@
          sodipodi:nodetypes="ccccccc" />
       <path
          style="color:#000000;display:inline;overflow:visible;visibility:visible;fill:none;stroke:#bebebe;stroke-width:1.04574132;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;enable-background:accumulate"
-         d="m 109.52307,543.63338 2.95426,-1.11051"
+         d="m 109.52307,543.63338 2.95426,-1.11051 0.1,0"
          id="path11645"
          inkscape:connector-curvature="0" />
     </g>