Update man pages

doc/nghttpx.1

@@ -48,10 +48,10 @@ Set path  to server\(aqs private key.   Required unless \fI\%\-p\fP,
 Set path  to server\(aqs certificate.  Required  unless \fI\%\-p\fP,
 \fI\%\-\-client\fP or \fI\%\-\-frontend\-no\-tls\fP are given.
 .UNINDENT
-.SH OPTIONS:
+.SH OPTIONS
 .sp
 The options are categorized into several groups.
-.SS Connections:
+.SS Connections
 .INDENT 0.0
 .TP
 .B \-b, \-\-backend=<HOST,PORT>
@@ -104,7 +104,7 @@ timeouts when connecting and  making CONNECT request can
 be     specified    by     \fI\%\-\-backend\-read\-timeout\fP    and
 \fI\%\-\-backend\-write\-timeout\fP options.
 .UNINDENT
-.SS Performance:
+.SS Performance
 .INDENT 0.0
 .TP
 .B \-n, \-\-workers=<N>
@@ -234,7 +234,7 @@ Set buffer size used to store backend response.
 .sp
 Default: \fB16K\fP
 .UNINDENT
-.SS Timeout:
+.SS Timeout
 .INDENT 0.0
 .TP
 .B \-\-frontend\-http2\-read\-timeout=<DURATION>
@@ -303,7 +303,7 @@ disables this feature.
 .sp
 Default: \fB0\fP
 .UNINDENT
-.SS SSL/TLS:
+.SS SSL/TLS
 .INDENT 0.0
 .TP
 .B \-\-ciphers=<SUITE>
@@ -434,7 +434,7 @@ objects, which means session  ID generated by one worker
 is not acceptable by another worker.  On the other hand,
 session ticket key is shared across all worker threads.
 .UNINDENT
-.SS HTTP/2 and SPDY:
+.SS HTTP/2 and SPDY
 .INDENT 0.0
 .TP
 .B \-c, \-\-http2\-max\-concurrent\-streams=<N>
@@ -500,7 +500,7 @@ padding.  Specify 0 to  disable padding.  This option is
 meant for debugging purpose  and not intended to enhance
 protocol security.
 .UNINDENT
-.SS Mode:
+.SS Mode
 .INDENT 0.0
 .TP
 .B (default mode)
@@ -541,7 +541,7 @@ Like \fI\%\-\-client\fP  option, but it also  requires the request
 path from frontend must be an absolute URI, suitable for
 use as a forward proxy.
 .UNINDENT
-.SS Logging:
+.SS Logging
 .INDENT 0.0
 .TP
 .B \-L, \-\-log\-level=<LEVEL>
@@ -623,7 +623,7 @@ Set syslog facility to <FACILITY>.
 .sp
 Default: \fBdaemon\fP
 .UNINDENT
-.SS HTTP:
+.SS HTTP
 .INDENT 0.0
 .TP
 .B \-\-add\-x\-forwarded\-for
@@ -669,7 +669,7 @@ won\(aqt replace anything already  set.  This option can be
 used several  times to  specify multiple  header fields.
 Example: \fI\%\-\-add\-response\-header\fP="foo: bar"
 .UNINDENT
-.SS Debug:
+.SS Debug
 .INDENT 0.0
 .TP
 .B \-\-frontend\-http2\-dump\-request\-header=<PATH>
@@ -695,7 +695,7 @@ Print HTTP/2 frames in  frontend to stderr.  This option
 is  not thread  safe and  MUST NOT  be used  with option
 \fI\%\-n\fP=N, where N >= 2.
 .UNINDENT
-.SS Process:
+.SS Process
 .INDENT 0.0
 .TP
 .B \-D, \-\-daemon
@@ -713,7 +713,7 @@ Set path to save PID of this program.
 Run this program as <USER>.   This option is intended to
 be used to drop root privileges.
 .UNINDENT
-.SS Misc:
+.SS Misc
 .INDENT 0.0
 .TP
 .B \-\-conf=<PATH>