A few small corrections to the SSL documentation.

Submitted by Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>

doc/ssl/SSL_CTX_load_verify_locations.pod

@@ -64,7 +64,7 @@ Prepare the directory /some/where/certs containing several CA certificates
 for use as B<CApath>:
 
  cd /some/where/certs
- c_rehash
+ c_rehash .
 
 =head1 RETURN VALUES
 

doc/ssl/SSL_accept.pod

@@ -54,7 +54,7 @@ The TLS/SSL handshake was not successful but was shut down controlled and
 by the specifications of the TLS/SSL protocol. Call SSL_get_error() with the
 return value B<ret> to find out the reason.
 
-=item -1
+=item E<lt>0
 
 The TLS/SSL handshake was not successful because a fatal error occurred either
 at the protocol level or a connection failure occurred. The shutdown was

doc/ssl/SSL_connect.pod

@@ -51,7 +51,7 @@ The TLS/SSL handshake was not successful but was shut down controlled and
 by the specifications of the TLS/SSL protocol. Call SSL_get_error() with the
 return value B<ret> to find out the reason.
 
-=item -1
+=item E<lt>0
 
 The TLS/SSL handshake was not successful, because a fatal error occurred either
 at the protocol level or a connection failure occurred. The shutdown was

doc/ssl/SSL_read.pod

@@ -61,7 +61,7 @@ The read operation was not successful, probably because no data was
 available. Call SSL_get_error() with the return value B<ret> to find out,
 whether an error occurred.
 
-=item -1
+=item E<lt>0
 
 The read operation was not successful, because either an error occurred
 or action must be taken by the calling process. Call SSL_get_error() with the

doc/ssl/SSL_write.pod

@@ -60,7 +60,7 @@ bytes actually written to the TLS/SSL connection.
 The write operation was not successful. Call SSL_get_error() with the return
 value B<ret> to find out, whether an error occurred.
 
-=item -1
+=item E<lt>0
 
 The read operation was not successful, because either an error occurred
 or action must be taken by the calling process. Call SSL_get_error() with the