`yes`: fix some errors.

src/yes.c

@@ -44,7 +44,7 @@ Usage:
 */
 
 int yes(int argc, char **argv) {
-  char *spammy = malloc((sizeof(char) * 16) * 2);
+  char *spammy = "";
   int len = 2048; // max length of buffer
   char buf[len];
   FILE *stdoutFP = stdout;
@@ -70,8 +70,8 @@ int yes(int argc, char **argv) {
         printf("%s\n", DRAKECU_VERSION);
         return 0;
       } else {
-        spammy = realloc(spammy, strlen(arg) + 1);
+        spammy = arg;
-        sprintf(spammy, "%s\n", arg);
+		strcat(spammy, "\n");
       }
     }
   }
@@ -79,8 +79,8 @@ int yes(int argc, char **argv) {
   int splen = strlen(spammy);
   do {
     sprintf(buf, "%s%s", buf, spammy);
-    n++;
+    n += splen;
-  } while (n < len);
+  } while (n+splen < len);
   do {
     fwrite(buf, sizeof(char), len, stdoutFP);
   } while (1);