Pointed sendmail to correct lmtp socket

Makefile

@@ -41,6 +41,7 @@ all: cyrus-config imapd-config cyrus-imapd-service services
 	if [ -f "/etc/mail/sendmail.mc" ]; then \
 	    cd /etc/mail ; \
 	    sed -i "x;/./{x;b};x;/^MAILER(/h;//idefine(\`confLOCAL_MAILER', \`cyrusv2')dnl" sendmail.mc ; \
+	    sed -i "x;/./{x;b};x;/^MAILER(/h;//idefine(\`CYRUSV2_MAILER_ARGS',\`FILE /run/cyrus/socket/lmtp')dnl" sendmail.mc ; \
 	    echo "MAILER(\`cyrusv2')dnl" >> sendmail.mc ; \
 	    m4 m4/cf.m4 sendmail.mc > sendmail.cf ; \
 	fi