ssl: deprecate CURLE_SSL_CACERT in favour of a unified error code

Long live CURLE_PEER_FAILED_VERIFICATION

tests/data/test1538

@@ -83,7 +83,7 @@ e47: Number of redirects hit maximum amount
 e48: An unknown option was passed in to libcurl
 e49: Malformed telnet option
 e50: Unknown error
-e51: SSL peer certificate or SSH remote key was not OK
+e51: Unknown error
 e52: Server returned nothing (no headers, no data)
 e53: SSL crypto engine not found
 e54: Can not set SSL crypto engine as default
@@ -92,7 +92,7 @@ e56: Failure when receiving data from the peer
 e57: Unknown error
 e58: Problem with the local SSL certificate
 e59: Couldn't use specified SSL cipher
-e60: Peer certificate cannot be authenticated with given CA certificates
+e60: SSL peer certificate or SSH remote key was not OK
 e61: Unrecognized or bad HTTP Content or Transfer-Encoding
 e62: Invalid LDAP URL
 e63: Maximum file size exceeded

tests/data/test311

@@ -37,7 +37,7 @@ perl -e "print 'Test requires default test server host' if ( '%HOSTIP' ne '127.0
 # Verify data after the test has been "shot"
 <verify>
 <errorcode>
-51
+60
 </errorcode>
 </verify>
 </testcase>

tests/data/test312

@@ -37,7 +37,7 @@ perl -e "print 'Test requires default test server host' if ( '%HOSTIP' ne '127.0
 # Verify data after the test has been "shot"
 <verify>
 <errorcode>
-51
+60
 </errorcode>
 </verify>
 </testcase>

tests/data/test630

@@ -25,7 +25,7 @@ SFTP incorrect host key
 # Verify data after the test has been "shot"
 <verify>
 <errorcode>
-51
+60
 </errorcode>
 <valgrind>
 disable

tests/data/test631

@@ -25,7 +25,7 @@ SCP incorrect host key
 # Verify data after the test has been "shot"
 <verify>
 <errorcode>
-51
+60
 </errorcode>
 <valgrind>
 disable