diff --git a/Doc/lib/libposix.tex b/Doc/lib/libposix.tex
index 737ddb1e45c..c22f1e06578 100644
--- a/Doc/lib/libposix.tex
+++ b/Doc/lib/libposix.tex
@@ -89,6 +89,13 @@ Note: the standard way to exit is \code{sys.exit(\var{n})}.
 after a \code{fork()}.
 \end{funcdesc}
 
+\begin{funcdesc}{fdopen}{fd\, mode}
+Return an open file object connected to the file descriptor \var{fd},
+open for reading and/or writing according to the \var{mode} string
+(which has the same meaning as the \var{mode} argument to the built-in
+\code{open()} function.
+\end{funcdesc}
+
 \begin{funcdesc}{fork}{}
 Fork a child process.  Return 0 in the child, the child's process id
 in the parent.
diff --git a/Doc/libposix.tex b/Doc/libposix.tex
index 737ddb1e45c..c22f1e06578 100644
--- a/Doc/libposix.tex
+++ b/Doc/libposix.tex
@@ -89,6 +89,13 @@ Note: the standard way to exit is \code{sys.exit(\var{n})}.
 after a \code{fork()}.
 \end{funcdesc}
 
+\begin{funcdesc}{fdopen}{fd\, mode}
+Return an open file object connected to the file descriptor \var{fd},
+open for reading and/or writing according to the \var{mode} string
+(which has the same meaning as the \var{mode} argument to the built-in
+\code{open()} function.
+\end{funcdesc}
+
 \begin{funcdesc}{fork}{}
 Fork a child process.  Return 0 in the child, the child's process id
 in the parent.
diff --git a/Doc/tools/whichlibs b/Doc/tools/whichlibs
index b7efe14d1c0..56287cbee36 100755
--- a/Doc/tools/whichlibs
+++ b/Doc/tools/whichlibs
@@ -1,2 +1,2 @@
-#! /bin/sh
+#!/bin/sh
 sed -n 's/^\\input{\(lib[a-zA-Z0-9_]*\)}.*/\1.tex/p' lib.tex
diff --git a/Doc/whichlibs b/Doc/whichlibs
index b7efe14d1c0..56287cbee36 100755
--- a/Doc/whichlibs
+++ b/Doc/whichlibs
@@ -1,2 +1,2 @@
-#! /bin/sh
+#!/bin/sh
 sed -n 's/^\\input{\(lib[a-zA-Z0-9_]*\)}.*/\1.tex/p' lib.tex