Script Context layers test for "ASCERR: " and the space is significant.

Update code and comments to reflect that

site_ansto/hardsup/sct_oxfordprot.c

@@ -107,7 +107,7 @@ int OxfordWriting(Ascon *a) {
   return 1;
 }
 
-/** @brief Map oxford replies to OK, ASCERR:..., value.
+/** @brief Map oxford replies to OK, ASCERR: ..., value.
 * You can use the first character to sort replies from a oxford controller
 */
 int OxfordReading(Ascon *a) {
@@ -181,7 +181,7 @@ int OxfordReading(Ascon *a) {
 * sorts replies into standard responses of
 * <value>
 * OK
-* ASCERR:...
+* ASCERR: ...
 */
 int OxfordProtHandler(Ascon *a) {
   int ret;