xcsv: Initialize option 'datum' with default value (WGS 84).

diff --git a/xcsv.c b/xcsv.c
index c3677c923376f856b4ac86965d61e13e15681bf5..b6ff3163a026b3e861b5ae78473b0212fa23d8a1 100644 (file)
--- a/xcsv.c
+++ b/xcsv.c
@@ -61,7 +61,7 @@ arglist_t xcsv_args[] = {
                "Use shortname instead of description", 
                NULL, ARGTYPE_BOOL, ARG_NOMINMAX },
        {"datum", &opt_datum, "GPS datum (def. WGS 84)", 
-               NULL, ARGTYPE_STRING, ARG_NOMINMAX}, 
+               "WGS 84", ARGTYPE_STRING, ARG_NOMINMAX}, 
        ARG_TERMINATOR
 };
 
@@ -546,11 +546,8 @@ xcsv_rd_init(const char *fname)
     }
 
     xcsv_file.xcsvfp = gbfopen(fname, "r", MYNAME);
-    if (opt_datum) {
-       xcsv_file.gps_datum = GPS_Lookup_Datum_Index(opt_datum);
-       is_fatal(xcsv_file.gps_datum < 0, MYNAME ": datum \"%s\" is not supported.", opt_datum);
-    }
-
+    xcsv_file.gps_datum = GPS_Lookup_Datum_Index(opt_datum);
+    is_fatal(xcsv_file.gps_datum < 0, MYNAME ": datum \"%s\" is not supported.", opt_datum);
 }
 
 static void
@@ -599,10 +596,8 @@ xcsv_wr_init(const char *fname)
         setshort_badchars(xcsv_file.mkshort_handle, xcsv_file.badchars);
 
     }
-    if (opt_datum) {
-       xcsv_file.gps_datum = GPS_Lookup_Datum_Index(opt_datum);
-       is_fatal(xcsv_file.gps_datum < 0, MYNAME ": datum \"%s\" is not supported.", opt_datum);
-    }
+    xcsv_file.gps_datum = GPS_Lookup_Datum_Index(opt_datum);
+    is_fatal(xcsv_file.gps_datum < 0, MYNAME ": datum \"%s\" is not supported.", opt_datum);
 }
 
 static void