OPT_STRING(0, "format", &format, "fmt", "archive format"),
OPT_STRING(0, "prefix", &base, "prefix",
"prepend prefix to each pathname in the archive"),
- OPT_STRING(0, "output", &output, "file",
+ OPT_STRING('o', "output", &output, "file",
"write the archive to this file"),
OPT_BOOLEAN(0, "worktree-attributes", &worktree_attributes,
"read .gitattributes in working directory"),