brk.2, chmod.2, gethostname.2, setpgid.2, wait4.2, atoi.3, fwide.3, getlogin.3, printf.3, strtoul.3, wprintf.3: Consistency fix-up in FTMs

Generally, place '||' at start of a line, rather than the end of
the previous line.

Rationale: this placement clearly indicates that that each piece
is an alternative.

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

man2/brk.2

@@ -46,17 +46,17 @@ Feature Test Macro Requirements for glibc (see
 .BR sbrk ():
 .nf
     Since glibc 2.19:
-        _DEFAULT_SOURCE ||
-            (_XOPEN_SOURCE\ >=\ 500) &&
+        _DEFAULT_SOURCE
+            || ((_XOPEN_SOURCE\ >=\ 500) &&
+                ! (_POSIX_C_SOURCE\ >=\ 200112L))
 .\"    (_XOPEN_SOURCE\ >=\ 500 ||
 .\"        _XOPEN_SOURCE\ &&\ _XOPEN_SOURCE_EXTENDED) &&
-            ! (_POSIX_C_SOURCE\ >=\ 200112L)
     From glibc 2.12 to 2.19:
-        _BSD_SOURCE || _SVID_SOURCE ||
-            (_XOPEN_SOURCE\ >=\ 500) &&
+        _BSD_SOURCE || _SVID_SOURCE
+            || ((_XOPEN_SOURCE\ >=\ 500) &&
+                ! (_POSIX_C_SOURCE\ >=\ 200112L))
 .\"    (_XOPEN_SOURCE\ >=\ 500 ||
 .\"        _XOPEN_SOURCE\ &&\ _XOPEN_SOURCE_EXTENDED) &&
-            ! (_POSIX_C_SOURCE\ >=\ 200112L)
     Before glibc 2.12:
         _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE\ >=\ 500
 .\"    || _XOPEN_SOURCE\ &&\ _XOPEN_SOURCE_EXTENDED

man2/chmod.2

@@ -61,8 +61,8 @@ Feature Test Macro Requirements for glibc (see
     Glibc 2.16 to 2.19:
         _BSD_SOURCE || _POSIX_C_SOURCE
     Glibc 2.12 to 2.16:
-        _BSD_SOURCE || _XOPEN_SOURCE\ >=\ 500 ||
-            _POSIX_C_SOURCE >= 200809L
+        _BSD_SOURCE || _XOPEN_SOURCE\ >=\ 500
+            || _POSIX_C_SOURCE >= 200809L
     Glibc 2.11 and earlier:
         _BSD_SOURCE || _XOPEN_SOURCE\ >=\ 500
 .\"        || (_XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED)

man2/gethostname.2

@@ -47,8 +47,8 @@ Feature Test Macro Requirements for glibc (see
 .PP
 .BR gethostname ():
 .nf
-    _XOPEN_SOURCE\ >=\ 500 || _POSIX_C_SOURCE\ >=\ 200112L ||
-        /* Glibc 2.19 and earlier */ _BSD_SOURCE
+    _XOPEN_SOURCE\ >=\ 500 || _POSIX_C_SOURCE\ >=\ 200112L
+        || /* Glibc 2.19 and earlier */ _BSD_SOURCE
 .\" The above is something of a simplification
 .\" also in glibc before 2.3 there was a bit churn
 .fi

man2/setpgid.2

@@ -88,8 +88,8 @@ Feature Test Macro Requirements for glibc (see
 .nf
     [These are available only before glibc 2.19]
     _BSD_SOURCE &&
-        !\ (_POSIX_SOURCE || _POSIX_C_SOURCE || _XOPEN_SOURCE ||
-            _GNU_SOURCE || _SVID_SOURCE)
+        !\ (_POSIX_SOURCE || _POSIX_C_SOURCE || _XOPEN_SOURCE
+            || _GNU_SOURCE || _SVID_SOURCE)
 .fi
 .SH DESCRIPTION
 All of these interfaces are available on Linux,

man2/wait4.2

@@ -53,9 +53,9 @@ Feature Test Macro Requirements for glibc (see
 .BR wait3 ():
 .nf
     Since glibc 2.26:
-        _DEFAULT_SOURCE ||
-        (_XOPEN_SOURCE\ >=\ 500 &&
-            ! (_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600))
+        _DEFAULT_SOURCE
+            || (_XOPEN_SOURCE\ >=\ 500 &&
+                ! (_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600))
     From glibc 2.19 to 2.25:
         _DEFAULT_SOURCE || _XOPEN_SOURCE\ >=\ 500
     Glibc 2.19 and earlier:

man3/atoi.3

@@ -49,7 +49,7 @@ Feature Test Macro Requirements for glibc (see
 .PP
 .BR atoll ():
 .nf
-    _ISOC99_SOURCE ||
+    _ISOC99_SOURCE
         || /* Glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
 .fi
 .SH DESCRIPTION

man3/fwide.3

@@ -30,8 +30,8 @@ Feature Test Macro Requirements for glibc (see
 .PP
 .BR fwide ():
 .nf
-    _XOPEN_SOURCE\ >=\ 500 || _ISOC99_SOURCE ||
-        _POSIX_C_SOURCE\ >=\ 200112L
+    _XOPEN_SOURCE\ >=\ 500 || _ISOC99_SOURCE
+        || _POSIX_C_SOURCE\ >=\ 200112L
 .fi
 .SH DESCRIPTION
 When \fImode\fP is zero, the

man3/getlogin.3

@@ -53,7 +53,7 @@ _POSIX_C_SOURCE\ >=\ 199506L
 .nf
     Since glibc 2.24:
         (_XOPEN_SOURCE && ! (_POSIX_C_SOURCE >= 200112L)
-        || _GNU_SOURCE
+            || _GNU_SOURCE
     Up to and including glibc 2.23:
         _XOPEN_SOURCE
 .fi

man3/printf.3

@@ -63,7 +63,7 @@ Feature Test Macro Requirements for glibc (see
 .BR snprintf (),
 .BR vsnprintf ():
 .nf
-    _XOPEN_SOURCE\ >=\ 500 || _ISOC99_SOURCE ||
+    _XOPEN_SOURCE\ >=\ 500 || _ISOC99_SOURCE
         || /* Glibc <= 2.19: */ _BSD_SOURCE
 .fi
 .PP

man3/strtoul.3

@@ -50,7 +50,7 @@ Feature Test Macro Requirements for glibc (see
 .PP
 .BR strtoull ():
 .nf
-    _ISOC99_SOURCE ||
+    _ISOC99_SOURCE
         || /* Glibc <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE
 .fi
 .SH DESCRIPTION

man3/wprintf.3

@@ -46,8 +46,8 @@ All functions shown above:
 .\" .BR vfwprintf (),
 .\" .BR vswprintf ():
 .nf
-    _XOPEN_SOURCE\ >=\ 500 || _ISOC99_SOURCE ||
-        _POSIX_C_SOURCE\ >=\ 200112L
+    _XOPEN_SOURCE\ >=\ 500 || _ISOC99_SOURCE
+        || _POSIX_C_SOURCE\ >=\ 200112L
 .fi
 .SH DESCRIPTION
 The