Document that expand-file-name collapses multiple slashes. (Bug#7617)

 fileio.c (Fexpand_file_name): Doc fix.

1 files changed, 4 insertions, 1 deletions

diff --git a/src/fileio.c b/src/fileio.c
index 440a726b26b..e330f724142 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -832,6 +832,9 @@ File name components that are `.' are removed, and
 so are file name components followed by `..', along with the `..' itself;
 note that these simplifications are done without checking the resulting
 file names in the file system.
+Multiple consecutive slashes are collapsed into a single slash,
+except at the beginning of the file name when they are significant (e.g.,
+UNC file names on MS-Windows.)
 An initial `~/' expands to your home directory.
 An initial `~USER/' expands to USER's home directory.
 See also the function `substitute-in-file-name'.
@@ -839,7 +842,7 @@ See also the function `substitute-in-file-name'.
 For technical reasons, this function can return correct but
 non-intuitive results for the root directory; for instance,
 \(expand-file-name ".." "/") returns "/..".  For this reason, use
-(directory-file-name (file-name-directory dirname)) to traverse a
+\(directory-file-name (file-name-directory dirname)) to traverse a
 filesystem tree, not (expand-file-name ".."  dirname).  */)
      (name, default_directory)
      Lisp_Object name, default_directory;