minor: fix markup for sphinx directive markup

Author: Ed Costello

source/reference/command/mapReduce.txt

@@ -72,7 +72,7 @@ mapReduce
    control how MongoDB returns data from the map-reduce job. Consider
    the following 4 output possibilities.
 
-   .. versionadded: 1.8
+   .. versionadded:: 1.8
 
    :param replace: Optional. Specify a collection name (e.g. ``{ out:
                    { replace: collectionName } }``) where the output

source/reference/configuration-options.txt

@@ -203,7 +203,7 @@ Settings
 
 .. setting:: syslog
 
-   .. versionadded: 2.1.0
+   .. versionadded:: 2.1.0
 
    Sends all logging output to the host's :term:`syslog` system rather
    than to standard output or a log file as with :setting:`logpath`.

source/reference/method/db.collection.mapReduce.txt

@@ -90,7 +90,7 @@ db.collection.mapReduce()
                           The ``jsMode`` option defaults to
                           true.
 
-                          .. versionadded: 2.0
+                          .. versionadded:: 2.0
 
    :param Boolean verbose: Optional. The ``verbose`` option provides
                            statistics on job execution times.
@@ -100,7 +100,7 @@ db.collection.mapReduce()
    control how MongoDB returns data from the map-reduce job. Consider
    the following 4 output possibilities.
 
-   .. versionadded: 1.8
+   .. versionadded:: 1.8
 
    :param replace: Optional. Specify a collection name (e.g. ``{ out:
                    { replace: collectionName } }``) where the output

source/reference/mongod.txt

@@ -125,7 +125,7 @@ Options
 
 .. option:: --syslog
 
-   .. versionadded: 2.1.0
+   .. versionadded:: 2.1.0
 
    Sends all logging output to the host's :term:`syslog` system rather
    than to standard output or a log file as with :option:`--logpath`.

source/reference/mongos.txt

@@ -134,7 +134,7 @@ Options
 
 .. option:: --syslog
 
-   .. versionadded: 2.1.0
+   .. versionadded:: 2.1.0
 
    Sends all logging output to the host's :term:`syslog` system rather
    than to standard output or a log file as with :option:`--logpath`.

source/reference/replica-configuration.txt

@@ -136,7 +136,7 @@ Configuration Variables
 
    .. todo:: add/remove note for 2.4
 
-      .. versionchanged: 2.4
+      .. versionchanged:: 2.4
          :data:`members[n].priority` now accepts values between 0
          and 1000.