tests/api.c, certs/test-serial0/include.am: drop em dash and trailing blank line

certs/test-serial0/include.am

@@ -9,4 +9,3 @@ EXTRA_DIST += certs/test-serial0/generate_certs.sh \
              certs/test-serial0/ee_normal.pem \
              certs/test-serial0/selfsigned_nonca_serial0.pem \
              certs/test-serial0/intermediate_serial0.pem
-

tests/api.c

@@ -23775,7 +23775,7 @@ static int test_PathLenNoKeyUsage(void)
 
 /* Exhaustive matrix coverage of the serial-0 predicate in
  * ParseCertRelative (asn.c). Inputs are openssl-generated PEM fixtures
- * under certs/test-serial0/ — no cert-under-test data is generated by
+ * under certs/test-serial0/ -- no cert-under-test data is generated by
  * wolfSSL, so the test cannot pass for the wrong reason if wc_MakeCert
  * encoding ever drifts.
  *