replace em-dash with ASCII hyphen

Author: JeremiahM37

tests/api/test_tls13.c

@@ -3782,7 +3782,7 @@ int test_tls13_corrupted_finished(void)
             sizeof(ssl_s->keys.client_write_MAC_secret));
     }
 
-    /* Step 4: Server processes client Finished — should fail */
+    /* Step 4: Server processes client Finished - should fail */
     ExpectIntNE(wolfSSL_accept(ssl_s), WOLFSSL_SUCCESS);
     ExpectIntEQ(wolfSSL_get_error(ssl_s, WOLFSSL_FATAL_ERROR),
         WC_NO_ERR_TRACE(VERIFY_FINISHED_ERROR));
@@ -3917,7 +3917,7 @@ int test_tls13_hrr_bad_cookie(void)
             ssl_s->buffers.tls13CookieSecret.length - 1] ^= 0xFF;
     }
 
-    /* Step 4: Server processes corrupted CH2 — should fail */
+    /* Step 4: Server processes corrupted CH2 - should fail */
     ExpectIntNE(wolfSSL_accept(ssl_s), WOLFSSL_SUCCESS);
     ExpectIntEQ(wolfSSL_get_error(ssl_s, WOLFSSL_FATAL_ERROR),
         WC_NO_ERR_TRACE(HRR_COOKIE_ERROR));