Fix phpredis#9, blPop leaking memory.

Author: nicolasff

redis.c

@@ -2004,7 +2004,7 @@ PHPAPI int generic_multiple_args_cmd(INTERNAL_FUNCTION_PARAMETERS, char *keyword
                 keys[j] = Z_STRVAL_PP(z_value_pp);
                 keys_len[j] = Z_STRLEN_PP(z_value_pp);
 
-				redis_key_prefix(redis_sock, &keys[j], &keys_len[j] TSRMLS_CC); /* add optional prefix  TSRMLS_CC*/
+				redis_key_prefix(redis_sock, &keys[j], &keys_len[j] TSRMLS_CC); /* add optional prefix */
 
                 cmd_len += 1 + integer_length(keys_len[j]) + 2 + keys_len[j] + 2; /* $ + size + NL + string + NL */
                 j++;
@@ -2072,6 +2072,9 @@ PHPAPI int generic_multiple_args_cmd(INTERNAL_FUNCTION_PARAMETERS, char *keyword
 			efree(keys[i]);
 		}
 	}
+	if(has_timeout) { /* cleanup string created to contain timeout value */
+		efree(keys[real_argc-1]);
+	}
 
     efree(keys);
 	efree(keys_len);