symbols-in-versions: sorted

I forgot to sort it when I added the CURL_SOCKOPT_* symbols

docs/libcurl/symbols-in-versions

@@ -645,6 +645,9 @@ CURL_SEEKFUNC_FAIL              7.19.5
 CURL_SEEKFUNC_OK                7.19.5
 CURL_SOCKET_BAD                 7.14.0
 CURL_SOCKET_TIMEOUT             7.14.0
+CURL_SOCKOPT_ALREADY_CONNECTED  7.21.5
+CURL_SOCKOPT_ERROR              7.21.5
+CURL_SOCKOPT_OK                 7.21.5
 CURL_SSLVERSION_DEFAULT         7.9.2
 CURL_SSLVERSION_SSLv2           7.9.2
 CURL_SSLVERSION_SSLv3           7.9.2
@@ -671,6 +674,3 @@ CURL_VERSION_SSL                7.10
 CURL_VERSION_SSPI               7.13.2
 CURL_VERSION_TLSAUTH_SRP        7.21.4
 CURL_WRITEFUNC_PAUSE            7.18.0
-CURL_SOCKOPT_OK                 7.21.5
-CURL_SOCKOPT_ERROR              7.21.5
-CURL_SOCKOPT_ALREADY_CONNECTED  7.21.5