docs: reformat man pages to improve consistency and readability

Change-Id: I4f9afbc73c365dfa31eb6cd1e4a48368b6a9064f
diff --git a/docs/manpages/nfd-autoreg.rst b/docs/manpages/nfd-autoreg.rst
index 3ce898a..58390d6 100644
--- a/docs/manpages/nfd-autoreg.rst
+++ b/docs/manpages/nfd-autoreg.rst
@@ -4,12 +4,16 @@
 Synopsis
 --------
 
-**nfd-autoreg** --prefix=</autoreg/prefix> [--prefix=</another/prefix>]...
+| **nfd-autoreg** [**-i**\|\ **\--prefix** *prefix*]... [**-a**\|\ **\--all-faces-prefix** *prefix*]...
+|                 [**-b**\|\ **\--blacklist** *network*]... [**-w**\|\ **\--whitelist** *network*]... \
+                  [**-c**\|\ **\--cost** *cost*]
+| **nfd-autoreg** **-h**\|\ **\--help**
+| **nfd-autoreg** **-V**\|\ **\--version**
 
 Description
 -----------
 
-``nfd-autoreg`` is a daemon application that automatically registers the specified
+:program:`nfd-autoreg` is a daemon application that automatically registers the specified
 prefix(es) when new on-demand faces are created (i.e., when a new UDP face is created as
 the result of an incoming packet or when a new TCP face is created as the result of an
 incoming connection).
@@ -17,53 +21,61 @@
 Options
 -------
 
-``-i`` or ``--prefix``
-  Prefix that should be automatically registered when a new remote face is created.
-  Can be repeated multiple times to specify additional prefixes.
+.. option:: -i <prefix>, --prefix <prefix>
 
-``-c`` or ``--cost``
-  RIB cost to be assigned to auto-registered prefixes.   If not specified, default cost
-  is set to 255.
+    Prefix that should be automatically registered when a new remote face is created.
+    Can be repeated multiple times to specify additional prefixes.
 
-``-w`` or ``--whitelist``
-  Whitelisted network, e.g., 192.168.2.0/24 or ::1/128.   Can be repeated multiple times
-  to specify multiple whitelisted networks.
+.. option:: -b <network>, --blacklist <network>
 
-  Prefix(es) will be auto-registered only when remote IP address is within the specified
-  range(s), except blacklist ranges.
+    Blacklisted network, e.g., 192.168.2.32/30 or ::1/128. Can be repeated multiple times
+    to specify multiple blacklisted networks.
 
-  Default: 0.0.0.0/0 and ::/0
+    The prefixes will be auto-registered only when the remote IP address is NOT inside the
+    specified range(s), but is inside the range defined by the whitelist(s), if any.
 
-``-b`` or ``--blacklist``
-  Blacklisted network, e.g., 192.168.2.32/30 or ::1/128.  Can be repeated multiple times
-  to specify multiple blacklisted networks.
+    Default: none.
 
-  Prefix(es) will be auto-registered only when remote IP address in **NOT** within the
-  specified range(s), but is within the range define by the whitelist(s).
+.. option:: -w <network>, --whitelist <network>
 
-  Default: none
+    Whitelisted network, e.g., 192.168.2.0/24 or ::1/128. Can be repeated multiple times
+    to specify multiple whitelisted networks.
 
-``-h`` or ``--help``
-  Print help message and exit.
+    The prefixes will be auto-registered only when the remote IP address is inside the
+    specified range(s), excluding any blacklisted range(s).
 
-``-V`` or ``--version``
-  Show version information and exit.
+    Default: 0.0.0.0/0 and ::/0.
 
-Exit status
+.. option:: -c <cost>, --cost <cost>
+
+    RIB cost to assign to auto-registered prefixes. If not specified, the cost is set to 255.
+
+.. option:: -h, --help
+
+    Print help message and exit.
+
+.. option:: -V, --version
+
+    Show version information and exit.
+
+Exit Status
 -----------
 
-0: No error.
+0
+    No error.
 
-1: An unspecified error occurred.
+1
+    An unspecified error occurred.
 
-2: Malformed command line, e.g., invalid, missing, or unknown argument.
+2
+    Malformed command line, e.g., invalid, missing, or unknown argument.
 
-4: Insufficient privileges.
+4
+    Insufficient privileges.
 
 Examples
 --------
 
-Auto-register two prefixes for any newly created on-demand face, except those that has
-source IP address in ``10.0.0.0/8`` network::
-
-    nfd-autoreg --prefix=/app1/video --prefix=/app2/pictures -b 10.0.0.0/8
+``nfd-autoreg -i /app1/video -i /app2/pictures -b 10.0.0.0/8``
+    Auto-register two prefixes for any newly created on-demand faces, except those that
+    have their remote IP address in the 10.0.0.0/8 network.