fix https://trac.osgeo.org/grass/changeset/43893 ('input' doubled)

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@43895 15284696-431f-4ddb-bdfa-cd5b030d7da7

imagery/i.atcorr/main.cpp

@@ -477,9 +477,9 @@ static struct Options define_options(void)
     opts.ivis->guisection       = _("Input");
 
     opts.icnd = G_define_standard_option(G_OPT_F_INPUT);
-    opts.icnd->key		= "input";
+    opts.icnd->key		= "parameters";
     opts.icnd->required	        = YES;
-    opts.icnd->description	= _("Name of input text file");
+    opts.icnd->description	= _("Name of input text file with 6S parameters");
 
     opts.oimg = G_define_standard_option(G_OPT_R_OUTPUT);