Updating cxxopts to latest.

lemire · lemire · commit 2e07850622e6 · 2020-10-09T16:46:30.000-04:00
diff --git a/dependencies/cxxopts b/dependencies/cxxopts
@@ -1 +1 @@
-Subproject commit 794c975287355de48158d9a80ed502d26b20a472
+Subproject commit 12e496da3d486b87fa9df43edea65232ed852510
