* processes.texi (Synchronous Processes): Mention `default-directory'.

Fixes: debbugs:7515

doc/lispref/ChangeLog

+2012-04-12  Jari Aalto  <jari.aalto@cante.net>
+
+	* processes.texi (Synchronous Processes): Mention
+	`default-directory' (bug#7515).
+
 2012-04-09  Chong Yidong  <cyd@gnu.org>
 
 	* customize.texi (Variable Definitions): Remove user-variable-p.

doc/lispref/processes.texi

@@ -268,6 +268,9 @@ system, much like text written into a file.  @xref{Coding Systems}.
 @defun call-process program &optional infile destination display &rest args
 This function calls @var{program} and waits for it to finish.
 
+The current working directory of the subprocess is
+@code{default-directory}.
+
 The standard input for the new process comes from file @var{infile} if
 @var{infile} is not @code{nil}, and from the null device otherwise.
 The argument @var{destination} says where to put the process output.