Fix typo

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@35433 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/docs/wxGUI.html

@@ -335,7 +335,7 @@ see <em><a href="g.region.html">g.region</a></em>.</dd>
 
 <dt><img src="icons/grass2/zoom-last.png">&nbsp;
   <img src="icons/grass/gui-zoom_back.gif">&nbsp;
-  <img src="icons/silk/zoom_back.png"> </em>Revert zoom</em></dt>
+  <img src="icons/silk/zoom_back.png"> <em>Revert zoom</em></dt>
 <dd>Returns to the previous zoom. Up to 10 levels of zoom back are
 maintained, see <em><a href="g.region.html">g.region</a></em>.</dd>