[3274] Fixed two typos.

src/lib/dhcpsrv/dhcp_parsers.cc

@@ -846,7 +846,7 @@ RelayInfoParser::build(ConstElementPtr relay_info) {
     if ( (ip->isV4() && family_ != Option::V4) ||
          (ip->isV6() && family_ != Option::V6) ) {
         isc_throw(DhcpConfigError, "ip-address field " << ip->toText()
-                  << "does not have IP address of expected family type:"
+                  << "does not have IP address of expected family type: "
                   << (family_ == Option::V4?"IPv4":"IPv6"));
     }
 

src/lib/dhcpsrv/dhcp_parsers.h

@@ -774,7 +774,7 @@ public:
                     const isc::dhcp::Option::Universe family);
 
     /// @brief parses the actual relay parameters
-    /// @param relay_info JSON strcture holding relay parameters to parse
+    /// @param relay_info JSON structure holding relay parameters to parse
     virtual void build(isc::data::ConstElementPtr relay_info);
 
     /// @brief stores parsed info in relay_info