wxgui_items.xml: update of a few of several outdated module descriptions (avoid almost identical strings. Make them identical or significantly different for good reason (trunk, https://trac.osgeo.org/grass/changeset/66687)

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@66727 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/xml/wxgui_items.xml

@@ -192,14 +192,14 @@
     <label>Common formats import</label>
     <handler>OnImportGdalLayers</handler>
     <related-module>r.in.gdal</related-module>
-    <description>Import raster data into a GRASS map layer using GDAL.</description>
+    <description>Imports raster data into a GRASS raster map using GDAL library.</description>
     <keywords>raster,import</keywords>
   </wxgui-item>
   <wxgui-item name="CommonImportFormats">
     <label>Common import formats</label>
     <handler>OnImportOgrLayers</handler>
     <related-module>v.in.ogr</related-module>
-    <description>Converts vector layers into a GRASS vector map using OGR.</description>
+    <description>Imports vector data into a GRASS vector map using OGR library.</description>
     <keywords>vector,import</keywords>
   </wxgui-item>
   <wxgui-item name="DXFImport">