Man page formatting fixups

- Fix extra .B in the filename_format section
- Fix missing .RE for lockfile

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/fio.1 b/fio.1
index 0c2a243..be0cf91 100644
--- a/fio.1
+++ b/fio.1
@@ -152,7 +152,7 @@
 set.
 .TP
 .BI filename_format \fR=\fPstr
-.B If sharing multiple files between jobs, it is usually necessary to have
+If sharing multiple files between jobs, it is usually necessary to have
 fio generate the exact names that you want. By default, fio will name a file
 based on the default file format specification of
 \fBjobname.jobnumber.filenumber\fP. With this option, that can be
@@ -197,6 +197,7 @@
 Read-write locking on the file. Many readers may access the file at the same
 time, but writes get exclusive access.
 .RE
+.RE
 .P
 .BI opendir \fR=\fPstr
 Recursively open any files below directory \fIstr\fR.