optimize test case for setclientcert

Author: chronolaw

t/162-socket-tls-handshake.t

@@ -276,6 +276,7 @@ GET /t
 failed to setclientcert: bad client cert type
 --- no_error_log
 [alert]
+[error]
 [crit]
 [emerg]
 
@@ -313,6 +314,7 @@ GET /t
 failed to setclientcert: bad client pkey type
 --- no_error_log
 [alert]
+[error]
 [crit]
 [emerg]
 
@@ -339,6 +341,7 @@ GET /t
 failed to setclientcert: client certificate must be supplied with corresponding private key
 --- no_error_log
 [alert]
+[error]
 [crit]
 [emerg]
 
@@ -365,6 +368,7 @@ GET /t
 failed to setclientcert: client certificate must be supplied with corresponding private key
 --- no_error_log
 [alert]
+[error]
 [crit]
 [emerg]