; * src/fileio.c (Fsubstitute_in_file_name): Doc fix.

diff --git a/src/fileio.c b/src/fileio.c
index 1d9a3e1644463f2ae536aa4feaea6000950a4672..c0d1a5084a0786bb904ee0a9a9e53081f8172b80 100644 (file)
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -1830,7 +1830,8 @@ the value of that variable.  The variable name should be terminated
 with a character not a letter, digit or underscore; otherwise, enclose
 the entire variable name in braces.
 
-If FOO is not defined in the environment, it is not substituted.
+If FOO is not defined in the environment, `$FOO' is left unchanged in
+the value of this function.
 
 If `/~' appears, all of FILENAME through that `/' is discarded.
 If `//' appears, everything up to and including the first of