Use dash glyph instead of minus for accordion

See https://github.com/zurb/foundation-sites/pull/9570#issuecomment-269328088

diff --git a/scss/components/_accordion.scss b/scss/components/_accordion.scss
index 0ff2e4445e6e7b6ec9d2821893335f1c22445905..e29e76a0e8875fd582d713d6649aead1f8bd89f6 100644 (file)
--- a/scss/components/_accordion.scss
+++ b/scss/components/_accordion.scss
@@ -105,7 +105,7 @@ $accordion-content-padding: 1rem !default;
     }
 
     .is-active > &::before {
-      content: '-';
+      content: '\2013';
     }
   }
 }