These rules make it easy for shell script based tools to parse
reference names, pathname expansion by the shell when a reference name is used
-unquoted (by mistake), and also avoids ambiguities in certain
+unquoted (by mistake), and also avoid ambiguities in certain
reference name expressions (see linkgit:gitrevisions[7]):
. A double-dot `..` is often used as in `ref1..ref2`, and in some