Fix a typo found by Eric D. Moyer, closes SF 807813.

Thomas Heller · Thomas Heller · commit a425dbc7ce89 · 2003-09-17T17:11:01.000Z
Will backport to 2.3.
diff --git a/Doc/dist/dist.tex b/Doc/dist/dist.tex
@@ -1477,7 +1477,7 @@ \subsubsection{The Postinstallation script}
 
 This function can be used to retrieve special folder locations on
 Windows like the Start Menu or the Desktop.  It returns the full path
-to the folder.  'csidl_string' must be on of the following strings:
+to the folder.  'csidl_string' must be one of the following strings:
 
 \begin{verbatim}
 "CSIDL_APPDATA"
