Squashed 'external/fmt/' content from commit e1832bcf

git-subtree-dir: external/fmt
git-subtree-split: e1832bcf00ed53048aea1e4d2408a68301dcd50c

doc/bootstrap/mixins/text-overflow.less

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+// Text overflow
+// Requires inline-block or block for proper styling
+
+.text-overflow() {
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}