emscripten: fix CSS in termlib_min.js which caused some JS console spam

Although td.style height/minHeight/maxHeight apparently aren't supported in
HTML5 anyway

lib/termlib_min.js

@@ -1434,7 +1434,7 @@ _makeTerm: function(rebuild) {
 			tr=document.createElement('tr');
 			td=document.createElement('td');
 			td.id=divPrefix+r;
-			td.style.height=td.style.minHeight=td.style.maxHeight=this.conf.rowHeight;
+			td.style.height=td.style.minHeight=td.style.maxHeight=this.conf.rowHeight+'px';
 			td.style.whiteSpace='nowrap';
 			td.className=this.conf.fontClass;
 			td.innerHTML=rstr;
@@ -2760,4 +2760,4 @@ var TermGlobals = Terminal.prototype.globals;
 var termKey = Terminal.prototype.globals.termKey;
 var termDomKeyRef = Terminal.prototype.globals.termDomKeyRef;
 
-// eof
+// eof