Removed trailing white space at end of lines

man2/access.2

@@ -321,8 +321,8 @@ because UID mapping is done on the server and hidden from the client,
 which checks permissions.  (NFS versions 3 and higher perform the check on
 the server.)
 Similar problems can occur to FUSE mounts.
-.\" 
-.\" 
+.\"
+.\"
 .SS faccessat ()
 The raw
 .BR faccessat ()

man2/intro.2

@@ -50,7 +50,7 @@ at which point the kernel does the real work of the system call; and
 .IP *
 setting
 .I errno
-if the system call returns an error number when the kernel returns the 
+if the system call returns an error number when the kernel returns the
 CPU to user mode.
 .LP
 However, in a few cases, a wrapper function may do rather more than this,

man2/mknod.2

@@ -247,7 +247,7 @@ SVr4, 4.4BSD, POSIX.1-2001 (but see below), POSIX.1-2008.
 .\" The Linux version differs from the SVr4 version in that it
 .\" does not require root permission to create pipes, also in that no
 .\" EMULTIHOP, ENOLINK, or EINTR error is documented.
- 
+
 .BR mknodat ():
 POSIX.1-2008.
 .SH NOTES

man2/open.2

@@ -1130,7 +1130,7 @@ and
 .BR mkfifoat (3))
 are supported
 for two reasons.
-Here, the explanation is in terms of the 
+Here, the explanation is in terms of the
 .BR openat ()
 call, but the rationale is the analogous for the other interfaces.
 

man2/ptrace.2

@@ -1930,7 +1930,7 @@ At the system call level, the
 .BR PTRACE_PEEKTEXT ,
 .BR PTRACE_PEEKDATA ,
 and
-.BR PTRACE_PEEKUSER 
+.BR PTRACE_PEEKUSER
 requests have a different API: they store the result
 at the address specified by the
 .I data