epoll_wait.2: ffix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

man2/epoll_wait.2

@@ -49,7 +49,7 @@ are returned by
 The
 .I maxevents
 argument must be greater than zero.
-
+.PP
 The
 .I timeout
 argument specifies the number of milliseconds that
@@ -80,7 +80,7 @@ to block indefinitely, while specifying a
 equal to zero cause
 .BR epoll_wait ()
 to return immediately, even if no events are available.
-
+.PP
 The
 .I struct epoll_event
 is defined as:
@@ -125,7 +125,7 @@ like
 .BR epoll_pwait ()
 allows an application to safely wait until either a file descriptor
 becomes ready or until a signal is caught.
-
+.PP
 The following
 .BR epoll_pwait ()
 call:
@@ -195,7 +195,7 @@ was added to the kernel in version 2.6.
 .\" To be precise: kernel 2.5.44.
 .\" The interface should be finalized by Linux kernel 2.5.66.
 Library support is provided in glibc starting with version 2.3.2.
-
+.PP
 .BR epoll_pwait ()
 was added to Linux in kernel 2.6.19.
 Library support is provided in glibc starting with version 2.6.
@@ -212,7 +212,7 @@ If the new file descriptor becomes ready,
 it will cause the
 .BR epoll_wait ()
 call to unblock.
-
+.PP
 For a discussion of what may happen if a file descriptor in an
 .B epoll
 instance being monitored by