add node-debug.log* to gitignore
node-debug.log messages started appending an iteger suffix
so that the current rule in gitignore was not excluding these
files, for example:
hubs/static/client/npm-debug.log.1537570786
hubs/static/client/npm-debug.log.1896021309
hubs/static/client/npm-debug.log.1961022125
hubs/static/client/npm-debug.log.217180748
hubs/static/client/npm-debug.log.2388279065
hubs/static/client/npm-debug.log.2786035756
adding a glob to the end of this rule fixes this issue
Signed-off-by: Ryan Lerch <rlerch@redhat.com>