typo

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@50975 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/htmldriver/htmldriver.html

@@ -52,7 +52,7 @@ setting <b>GRASS_RENDER_IMMEDIATE</b> variable, eg.
 export GRASS_RENDER_IMMEDIATE=html
 </pre></div>
 
-Several environment variables effect the operation of the HTML driver:
+Several environment variables affect the operation of the HTML driver:
 
 <ul>
   <li><b>GRASS_WIDTH=xxx</b><br>

lib/psdriver/psdriver.html

@@ -27,7 +27,7 @@ variable, eg.
 export GRASS_RENDER_IMMEDIATE=ps
 </pre></div>
 
-Several environment variables effect the operation of the PS driver:
+Several environment variables affect the operation of the PS driver:
 
 <ul>
   <li><b>GRASS_WIDTH=xxx</b><br>