ruby-travis: Add a TODO to document that's not working

[Leonardo Taccari <leot%NetBSD.org@localhost>]

Module Name:	pkgsrc-wip
Committed By:	Leonardo Taccari <leot%NetBSD.org@localhost>
Pushed By:	leot
Date:		Mon Jul 8 18:41:37 2019 +0200
Changeset:	41a691d136d6012c21400b72bdb2d843d5a1bfd7

Added Files:
	ruby-travis/TODO

Log Message:
ruby-travis: Add a TODO to document that's not working

(Still unclear if it is really a ruby-travis problem though!)

To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=41a691d136d6012c21400b72bdb2d843d5a1bfd7

Please note that diffs are not public domain; they are subject to the
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diffstat:
 ruby-travis/TODO | 2 ++
 1 file changed, 2 insertions(+)

diffs:
diff --git a/ruby-travis/TODO b/ruby-travis/TODO
new file mode 100644
index 0000000000..0bba9ac574
--- /dev/null
+++ b/ruby-travis/TODO
@@ -0,0 +1,2 @@
+At least on NetBSD/evbarm (aarch64) `travis' probably fails due ruby-ffi.
+Test on other platforms and investigate further.