brk.2: ffix

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

man2/brk.2

@@ -31,16 +31,16 @@
 brk, sbrk \- change data segment size
 .SH SYNOPSIS
 .B #include <unistd.h>
-.sp
+.PP
 .BI "int brk(void *" addr );
-.sp
+.PP
 .BI "void *sbrk(intptr_t " increment );
-.sp
+.PP
 .in -4n
 Feature Test Macro Requirements for glibc (see
 .BR feature_test_macros (7)):
 .in
-.sp
+.PP
 .BR brk (),
 .BR sbrk ():
 .ad l
@@ -83,14 +83,14 @@ uninitialized data segment).
 Increasing the program break has the effect of
 allocating memory to the process;
 decreasing the break deallocates memory.
-
+.PP
 .BR brk ()
 sets the end of the data segment to the value specified by
 .IR addr ,
 when that value is reasonable, the system has enough memory,
 and the process does not exceed its maximum data size (see
 .BR setrlimit (2)).
-
+.PP
 .BR sbrk ()
 increments the program's data space by
 .I increment
@@ -108,7 +108,7 @@ On error, \-1 is returned, and
 .I errno
 is set to
 .BR ENOMEM .
-
+.PP
 On success,
 .BR sbrk ()
 returns the previous program break.
@@ -137,7 +137,7 @@ the
 .BR malloc (3)
 memory allocation package is the
 portable and comfortable way of allocating memory.
-
+.PP
 Various systems use various types for the argument of
 .BR sbrk ().
 Common are \fIint\fP, \fIssize_t\fP, \fIptrdiff_t\fP, \fIintptr_t\fP.
@@ -163,7 +163,7 @@ The glibc wrapper function does some work
 (i.e., checks whether the new break is less than
 .IR addr )
 to provide the 0 and \-1 return values described above.
-
+.PP
 On Linux,
 .BR sbrk ()
 is implemented as a library function that uses the