less sub-signatures to speed module up

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@54313 15284696-431f-4ddb-bdfa-cd5b030d7da7

imagery/i.gensigset/i.gensigset.html

@@ -108,7 +108,7 @@ selected.
 
 <br>
 
-default: 10
+default: 5
 
 <p>
 The spectral signatures which are produced by this program

imagery/i.gensigset/parse.c

@@ -27,7 +27,7 @@ int parse(int argc, char *argv[], struct parms *parms)
     maxsig->description = _("Maximum number of sub-signatures in any class");
     maxsig->required = NO;
     maxsig->type = TYPE_INTEGER;
-    maxsig->answer = "10";
+    maxsig->answer = "5";
 
     if (G_parser(argc, argv))
 	exit(EXIT_FAILURE);