[core] quiet coverity noise

src/h2.c

@@ -2111,7 +2111,9 @@ h2_send_headers_block (request_st * const r, connection * const con, const char
                   "oversized response-header");
         hoff[0] = 1;
         hoff[1] = 0;
-        http_header_parse_hoff(CONST_STR_LEN(":status: 500\r\n\r\n"), hoff);
+        if (http_header_parse_hoff(CONST_STR_LEN(":status: 500\r\n\r\n"),hoff)){
+            /*(ignore for coverity; static string is successfully parsed)*/
+        }
     }
 
     /*(h2_init_con() resized h2r->tmp_buf to 64k; shared with r->tmp_buf)*/

src/t/test_buffer.c

@@ -20,7 +20,7 @@ static void run_buffer_path_simplify(buffer *psrc, buffer *pdest, const char *in
 			__LINE__,
 			in,
 			out,
-			pdest->ptr ? pdest->ptr : "");
+			pdest->ptr);
 		fflush(stderr);
 		abort();
 	} else {
@@ -33,7 +33,7 @@ static void run_buffer_path_simplify(buffer *psrc, buffer *pdest, const char *in
 				__LINE__,
 				in,
 				out,
-				pdest->ptr ? pdest->ptr : "");
+				pdest->ptr);
 			fflush(stderr);
 			abort();
 		}