Use the new UIFC input mode flags to trim spaces where inappropriate

from sysop input, automatically.

src/sbbs3/scfg/scfg.c

@@ -633,6 +633,7 @@ int main(int argc, char **argv)
 		printf("uifc library init returned error %d\n",i);
 		exit(1);
 	}
+	uifc.kmode = K_TRIM; // trim all leading & trailing whitespace on string input
 
 	if((opt=(char **)malloc(sizeof(char *)*(MAX_OPTS+1)))==NULL)
 		allocfail(sizeof(char *)*(MAX_OPTS+1));

src/sbbs3/scfg/scfgsys.c

@@ -105,7 +105,7 @@ int edit_sys_inetaddr(int page, int total)
 	if(page)
 		mode = wiz_help(page, total, uifc.helpbuf);
 	return uifc.input(mode,0,10,"System Internet Address"
-		,cfg.sys_inetaddr,32,K_EDIT);
+		,cfg.sys_inetaddr,32,K_EDIT | K_NOSPACE);
 }
 
 int edit_sys_id(int page, int total)