Move mch_expandpath from os_unix.c

src/path.c

@@ -1761,3 +1761,19 @@ int pathcmp(const char *p, const char *q, int maxlen)
 }
 #endif
 
+#ifndef NO_EXPANDPATH
+/*
+ * Expand a path into all matching files and/or directories.  Handles "*",
+ * "?", "[a-z]", "**", etc.
+ * "path" has backslashes before chars that are not to be expanded.
+ * Returns the number of matches found.
+ */
+int mch_expandpath(gap, path, flags)
+garray_T    *gap;
+char_u      *path;
+int flags;                      /* EW_* flags */
+{
+  return unix_expandpath(gap, path, 0, flags, FALSE);
+}
+#endif
+