SF patch #855195: fix typos

(Contributed by George Yoshida.)

Doc/lib/libbsddb.tex

@@ -191,7 +191,7 @@ Example:
 7 49
 8 64
 9 81
->>> 8 in db
+>>> '8' in db
 True
 >>> db.sync()
 0

Doc/lib/libcurses.tex

@@ -362,7 +362,7 @@ Leave cbreak mode.  Return to normal ``cooked'' mode with line buffering.
 \end{funcdesc}
 
 \begin{funcdesc}{noecho}{}
-Leave echo mode.  Echoing of input characters is turned off,
+Leave echo mode.  Echoing of input characters is turned off.
 \end{funcdesc}
 
 \begin{funcdesc}{nonl}{}

Doc/lib/libfcntl.tex

@@ -87,7 +87,7 @@ The module defines the following functions:
   An example:
 
 \begin{verbatim}
->>> import array, fnctl, struct, termios, os
+>>> import array, fcntl, struct, termios, os
 >>> os.getpgrp()
 13341
 >>> struct.unpack('h', fcntl.ioctl(0, termios.TIOCGPGRP, "  "))[0]

Doc/lib/libitertools.tex

@@ -76,6 +76,7 @@ by functions or loops that truncate the stream.
 
 \begin{funcdesc}{count}{\optional{n}}
   Make an iterator that returns consecutive integers starting with \var{n}.
+  If not specified \var{n} defaults to zero.  
   Does not currently support python long integers.  Often used as an
   argument to \function{imap()} to generate consecutive data points.
   Also, used with \function{izip()} to add sequence numbers.  Equivalent to: