worktree_git_path(): move the declaration to path.h

The definition of this function is in path.c but its declaration is
in worktree.h, which is something unexpected.  The function is
explained as "Similar to git_path()"; declaring it next to where
git_path() is declared would make more sense.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

path.h

@@ -4,6 +4,7 @@
 struct repository;
 struct strbuf;
 struct string_list;
+struct worktree;
 
 /*
  * The result to all functions which return statically allocated memory may be
@@ -81,6 +82,14 @@ void strbuf_repo_git_path(struct strbuf *sb,
 const char *git_path(const char *fmt, ...)
 	__attribute__((format (printf, 1, 2)));
 
+/*
+ * Similar to git_path() but can produce paths for a specified
+ * worktree instead of current one
+ */
+const char *worktree_git_path(const struct worktree *wt,
+			      const char *fmt, ...)
+	__attribute__((format (printf, 2, 3)));
+
 /*
  * Return a path into the main repository's (the_repository) git directory.
  */

revision.c

@@ -29,6 +29,7 @@
 #include "bisect.h"
 #include "packfile.h"
 #include "worktree.h"
+#include "path.h"
 #include "read-cache.h"
 #include "setup.h"
 #include "sparse-index.h"

worktree.h

@@ -175,14 +175,6 @@ int other_head_refs(each_ref_fn fn, void *cb_data);
 int is_worktree_being_rebased(const struct worktree *wt, const char *target);
 int is_worktree_being_bisected(const struct worktree *wt, const char *target);
 
-/*
- * Similar to git_path() but can produce paths for a specified
- * worktree instead of current one
- */
-const char *worktree_git_path(const struct worktree *wt,
-			      const char *fmt, ...)
-	__attribute__((format (printf, 2, 3)));
-
 /*
  * Return a refname suitable for access from the current ref store.
  */