slapos-configure: fixed var assignment

windows/scripts/slapos-configure.sh

@@ -212,7 +212,7 @@ function configure_section_re6stnet()
             csih_error "No ${re6stnet_configure_file} found."
         csih_inform "register re6stnet OK"
 
-        _log_path = $(cygpath -m /var/log/re6stnet)
+        _log_path=$(cygpath -m /var/log/re6stnet)
         csih_inform "Write information to re6stnet.conf:"
         csih_inform "  # $subnet"
         csih_inform "  table 0"