Update manual pages

doc/h2load.1

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-.TH "H2LOAD" "1" "Nov 23, 2020" "1.42.0" "nghttp2"
+.TH "H2LOAD" "1" "Feb 02, 2021" "1.43.0" "nghttp2"
 .SH NAME
 h2load \- HTTP/2 benchmarking tool
 .

doc/nghttp.1

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-.TH "NGHTTP" "1" "Nov 23, 2020" "1.42.0" "nghttp2"
+.TH "NGHTTP" "1" "Feb 02, 2021" "1.43.0" "nghttp2"
 .SH NAME
 nghttp \- HTTP/2 client
 .

doc/nghttpd.1

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-.TH "NGHTTPD" "1" "Nov 23, 2020" "1.42.0" "nghttp2"
+.TH "NGHTTPD" "1" "Feb 02, 2021" "1.43.0" "nghttp2"
 .SH NAME
 nghttpd \- HTTP/2 server
 .

doc/nghttpx.1

 .\" Man page generated from reStructuredText.
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-.TH "NGHTTPX" "1" "Nov 23, 2020" "1.42.0" "nghttp2"
+.TH "NGHTTPX" "1" "Feb 02, 2021" "1.43.0" "nghttp2"
 .SH NAME
 nghttpx \- HTTP/2 proxy
 .
@@ -277,8 +277,11 @@ weight  becomes  1.   "weight"  is  ignored  if  session
 affinity is enabled.
 .sp
 Since ";" and ":" are  used as delimiter, <PATTERN> must
-not  contain these  characters.  Since  ";" has  special
-meaning in shell, the option value must be quoted.
+not contain  these characters.  In order  to include ":"
+in  <PATTERN>,  one  has  to  specify  "%3A"  (which  is
+percent\-encoded  from of  ":") instead.   Since ";"  has
+special  meaning  in shell,  the  option  value must  be
+quoted.
 .sp
 Default: \fB127.0.0.1,80\fP
 .UNINDENT

doc/nghttpx.1.rst

@@ -261,8 +261,11 @@ Connections
     affinity is enabled.
 
     Since ";" and ":" are  used as delimiter, <PATTERN> must
-    not  contain these  characters.  Since  ";" has  special
-    meaning in shell, the option value must be quoted.
+    not contain  these characters.  In order  to include ":"
+    in  <PATTERN>,  one  has  to  specify  "%3A"  (which  is
+    percent-encoded  from of  ":") instead.   Since ";"  has
+    special  meaning  in shell,  the  option  value must  be
+    quoted.
 
 
     Default: ``127.0.0.1,80``