typo

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@37132 15284696-431f-4ddb-bdfa-cd5b030d7da7

imagery/i.atcorr/i.atcorr.html

@@ -520,7 +520,7 @@ echo "8                            - geometrical conditions=Landsat ETM+
 50                           - visibility [km] (aerosol model concentration)
 -.110                        - target at 110m above sea level
 -1000                        - sensor on board a satellite
-64                           - 1th band of ETM+ Landsat 7" > icnd.txt
+64                           - 4th band of ETM+ Landsat 7" > icnd.txt
 
 # run atmospheric correction
 i.atcorr lsat7_2002_40 ialt=elev_int icnd=icnd.txt oimg=lsat7_2002_40_atcorr