Add '-ice' command-line option treat to ANSI "Blink" sequences as

bright-background (iCE colors) using the new (to v3.17c) Ctrl-AE sequence
rather than Ctrl-AI.

src/sbbs3/ans2asc.c

@@ -53,6 +53,7 @@ static void print_usage(const char* prog)
 	fprintf(stderr,"\nSynchronet ANSI-Terminal-Sequence to Ctrl-A-Code Conversion Utility v%s\n",revision);
 	fprintf(stderr,"\nusage: %s infile.ans [outfile.asc | outfile.msg] [[option] [...]]\n",prog);
 	fprintf(stderr,"\noptions:\n\n");
+	fprintf(stderr,"-ice              treat blink as bright-background (iCE colors)\n");
 	fprintf(stderr,"-<columns>        insert conditional-newlines to force wrap (e.g. -80)\n");
 	fprintf(stderr,"-newline          append a newline (CRLF) sequence to output file\n");
 	fprintf(stderr,"-clear            insert a clear screen code at beginning of output file\n");
@@ -68,6 +69,7 @@ int main(int argc, char **argv)
 	int i,ch,ni;
 	FILE *in=stdin;
 	FILE *out=stdout;
+	int ice=0;
 	int cols=0;
 	int column=0;
 	int delay=0;
@@ -93,6 +95,8 @@ int main(int argc, char **argv)
 					return -1;
 				}
 			}
+			else if(strcmp(argv[i], "-ice") == 0)
+				ice = 1;
 			else if(strcmp(argv[i], "-clear") == 0)
 				clear = 1;
 			else if(strcmp(argv[i], "-pause") == 0)
@@ -190,10 +194,7 @@ int main(int argc, char **argv)
 								case 5: 				/* blink */
 								case 6:
 								case 7:
-									fputc('I',out);
-									break;
-								case 8: 				/* concealed */
-									fputc('E',out);		/* Elite-text, long unsupported (but should be resurrected?) */
+									fputc(ice ? 'E': 'I',out);
 									break;
 								case 30:
 									fputc('K',out);