Fix typo. [skip ci]

build.sh

@@ -65,7 +65,7 @@ function install_openldap {
         --enable-debug --enable-dynamic --enable-syslog --enable-proctitle --enable-local --enable-modules \
         --enable-slapd --enable-dynacl --enable-aci --enable-cleartext --enable-crypt --enable-spasswd \
         --enable-rewrite --enable-rlookups --enable-slapi --enable-backends=mod --enable-overlays=mod \
-        --with-subdir=ldap --with-cyrus-sasl--with-threads --with-tls=openssl \
+        --with-subdir=ldap --with-cyrus-sasl --with-threads --with-tls=openssl \
         CFLAGS="-Wno-cast-function-type \
                 -Wno-implicit-function-declaration \
                 -Wno-incompatible-pointer-types \