Error messages go to stderr.

src/uifc/uifcc.c

@@ -193,12 +193,12 @@ int uifcinic(uifcapi_t* uifcapi)
 	
     api->scrn_len=height;
     if(api->scrn_len<MIN_LINES || api->scrn_len>MAX_LINES) {
-        cprintf("\7UIFC: Screen length (%u) must be between %d and %d lines\r\n"
+        fprintf(stderr,"\7UIFC: Screen length (%u) must be between %d and %d lines\n"
             ,api->scrn_len,MIN_LINES,MAX_LINES);
         return(-2);
     }
     if(width*height*2>MAX_BFLN) {
-        cprintf("\7UIFC: Screen size (%u x %u) must be smaller than %u\r\n"
+        fprintf(stderr,"\7UIFC: Screen size (%u x %u) must be smaller than %u\n"
             ,api->scrn_len,width,height,(uchar)(MAX_BFLN/2));
         return(-2);
     }
@@ -207,7 +207,7 @@ int uifcinic(uifcapi_t* uifcapi)
 	
 
     if(width<80) {
-        cprintf("\7UIFC: Screen width (%u) must be at least 80 characters\r\n"
+        fprintf(stderr,"\7UIFC: Screen width (%u) must be at least 80 characters\n"
             ,width);
         return(-3);
     }