Add h2load.1 dev version for now to `make` happy

doc/h2load.1

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+.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.45.1.
+.TH H2LOAD "1" "May 2014" "h2load nghttp2/0.4.0-DEV" "User Commands"
+.SH NAME
+h2load \- HTTP/2 benchmarking tool
+.SH SYNOPSIS
+.B h2load
+[\fI\,OPTIONS\/\fR]... \fI\,<URI>\/\fR...
+.SH DESCRIPTION
+benchmarking tool for HTTP/2 and SPDY server
+.TP
+<URI>
+Specify  URI to  access.   Multiple  URIs can  be
+specified.  URIs are used  in this order for each
+client.   All URIs  are used,  then first  URI is
+used and  then 2nd URI,  and so on.   The scheme,
+host and port in the subsequent URIs, if present,
+are  ignored.  Those  in the  first URI  are used
+solely.
+.SH OPTIONS
+.HP
+\fB\-n\fR, \fB\-\-requests=\fR<N> Number of requests. Default: 1
+.TP
+\fB\-c\fR, \fB\-\-clients=\fR<N>
+Number of concurrent clients. Default: 1
+.TP
+\fB\-t\fR, \fB\-\-threads=\fR<N>
+Number of native threads. Default: 1
+.TP
+\fB\-m\fR, \fB\-\-max\-concurrent\-streams=\fR(auto|<N>)
+Max concurrent streams to  issue per session.  If
+"auto"  is given,  the  number of  given URIs  is
+used.  Default: auto
+.TP
+\fB\-w\fR, \fB\-\-window\-bits=\fR<N>
+Sets  the stream  level  initial  window size  to
+(2**<N>)\-1.  For SPDY, 2**<N> is used instead.
+.TP
+\fB\-W\fR, \fB\-\-connection\-window\-bits=\fR<N>
+Sets the connection level  initial window size to
+(2**<N>)\-1.  For  SPDY, if  <N> is  strictly less
+than  16,  this  option  is  ignored.   Otherwise
+2**<N> is used for SPDY.
+.TP
+\fB\-p\fR, \fB\-\-no\-tls\-proto=\fR<PROTOID>
+Specify  ALPN identifier  of the  protocol to  be
+used  when accessing  http  URI without  SSL/TLS.
+Available protocols: spdy/2, spdy/3, spdy/3.1 and
+h2c\-12
+Default: h2c\-12
+.TP
+\fB\-v\fR, \fB\-\-verbose\fR
+Output debug information.
+.TP
+\fB\-\-version\fR
+Display version information and exit.
+.TP
+\fB\-h\fR, \fB\-\-help\fR
+Display this help and exit.
+.SH "SEE ALSO"
+
+nghttp(1), nghttpd(1), nghttpx(1)