i.landsat.toar: fix message description of Sun Azimuth Angle; manual cosmetics

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@62952 15284696-431f-4ddb-bdfa-cd5b030d7da7

imagery/i.landsat.toar/i.landsat.toar.html

@@ -252,6 +252,8 @@ i.landsat.toar input_prefix=LC80160352013134LGN03_B output_prefix=toar \
   <a href="r.mapcalc.html">r.mapcalc</a>,
   <a href="r.in.gdal.html">r.in.gdal</a>
 </em>
+<p>
+<a href="https://lta.cr.usgs.gov/landsat_dictionary.html">Landsat Data Dictionary</a> by USGS
 
 <h2>AUTHOR</h2>
 

imagery/i.landsat.toar/main.c

@@ -209,7 +209,7 @@ int main(int argc, char *argv[])
 	       _("Date"),
 	       _("Sun Elevation"),
 	       _("Sensor"),
-	       _("Bands count"), _("Sun Zenith Angle"), _("Time"));
+	       _("Bands count"), _("Sun Azimuth Angle"), _("Time"));
     lsatmet->descriptions = desc;
     lsatmet->guisection = _("Settings");