Tripwire ignores global node modules

src/freedombone-base-tripwire

     if ! grep -q '!/etc/share/tt-rss/lock' /etc/tripwire/twpol.txt; then
         sed -i '\|/etc\t\t->.*|a\    !/etc/share/tt-rss/lock ;' /etc/tripwire/twpol.txt
     fi
+    # ignore global node modules
+    if ! grep -q '!/usr/local/lib/node_modules' /etc/tripwire/twpol.txt; then
+        sed -i '\|/etc\t\t->.*|a\    !/usr/local/lib/node_modules ;' /etc/tripwire/twpol.txt
+    fi
+
     # Not much is in /usr/local/bin other than project commands and avoiding it removes
     # problems with updates. This is a tradeoff, but not by much.
     sed -i '/\/usr\/local\/bin/d' /etc/tripwire/twpol.txt