css: fix code div width

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@59928 15284696-431f-4ddb-bdfa-cd5b030d7da7

man/grassdocs.css

@@ -57,7 +57,7 @@ h4{
 }
 
 div.code{
-    width: 100%;
+    width: 97%;
     color : black;
     background-color: rgb(90%, 90%, 90%);
     padding-left: 1em;
@@ -65,7 +65,7 @@ div.code{
 }
 
 span.code {
-    width: 95%;
+    width: 97%;
     color : black;
     background-color: rgb(90%, 90%, 90%);
     padding-left: 1em;