[trac1077] typo and punctuation fix

src/lib/log/log_messages.mes

@@ -33,7 +33,7 @@ should be one of "DEBUG", "INFO", "WARN", "ERROR", "FATAL" or "NONE".
 % LOG_BAD_STREAM bad log console output stream: %1
 Logging has been configured so that output is written to the terminal
 (console) but the stream on which it is to be written is not recognised.
-Allowed values are "stdout" and "stderr"
+Allowed values are "stdout" and "stderr".
 
 % LOG_DUPLICATE_MESSAGE_ID duplicate message ID (%1) in compiled code
 During start-up, BIND10 detected that the given message identification
@@ -123,7 +123,7 @@ a prefix to be added to the symbol names when a C++ file is created.
 As such, it must adhere to restrictions on C++ symbol names (e.g. may
 only contain alphanumeric characters or underscores, and may nor start
 with a digit).  A $PREFIX directive was found with an argument (given
-in the message) that violates those restictions.
+in the message) that violates those restrictions.
 
 Note: the $PREFIX directive is deprecated and will be removed in a future
 version of BIND10.