Auto merge of #2901 - gco:tcp_keepcnt, r=JohnTitor

Solaris TCP_KEEPINTVL and TCP_KEEPCNT have wrong values

Author: bors

src/unix/solarish/solaris.rs

@@ -33,8 +33,8 @@ pub const AF_LOCAL: ::c_int = 0;
 pub const AF_FILE: ::c_int = 0;
 
 pub const TCP_KEEPIDLE: ::c_int = 0x1d;
-pub const TCP_KEEPCNT: ::c_int = 0x1e;
-pub const TCP_KEEPINTVL: ::c_int = 0x1f;
+pub const TCP_KEEPINTVL: ::c_int = 0x1e;
+pub const TCP_KEEPCNT: ::c_int = 0x1f;
 
 pub const F_DUPFD_CLOEXEC: ::c_int = 47;
 pub const F_DUPFD_CLOFORK: ::c_int = 49;