Move libstand.3 to libsa.3. Update libsa.3 to include functions

recently added. More are likely missing.

stand/libsa/libsa.3

@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 6, 2004
+.Dd February 1, 2018
 .Dt LIBSTAND 3
 .Os
 .Sh NAME
@@ -161,6 +161,10 @@ may be used to prevent a variable being unset.
 .Bl -hang -width 10n
 .It Xo
 .Ft int
+.Fn abs "int i"
+.Xc
+.It Xo
+.Ft int
 .Fn getopt "int argc" "char * const *argv" "const char *optstring"
 .Xc
 .It Xo
@@ -168,6 +172,18 @@ may be used to prevent a variable being unset.
 .Fn strtol "const char *nptr" "char **endptr" "int base"
 .Xc
 .It Xo
+.Ft long long
+.Fn strtoll "const char *nptr" "char **endptr" "int base"
+.Xc
+.It Xo
+.Ft long
+.Fn strtoul "const char *nptr" "char **endptr" "int base"
+.Xc
+.It Xo
+.Ft long long
+.Fn strtoull "const char *nptr" "char **endptr" "int base"
+.Xc
+.It Xo
 .Ft void
 .Fn srandom "unsigned int seed"
 .Xc
@@ -350,6 +366,22 @@ ptr,
 .Xc
 .It Xo
 .Ft int
+.Fn isalnum "int c"
+.Xc
+.It Xo
+.Ft int
+.Fn iscntrl "int c"
+.Xc
+.It Xo
+.Ft int
+.Fn isgraph "int c"
+.Xc
+.It Xo
+.Ft int
+.Fn ispunct "int c"
+.Xc
+.It Xo
+.Ft int
 .Fn toupper "int c"
 .Xc
 .It Xo
@@ -583,6 +615,14 @@ The device driver itself will already have been called for the close; this call
 should clean up any allocation made by devopen only.
 .It Xo
 .Ft void
+.Fn abort
+.Xc
+.Pp
+Calls
+.Fn panic
+with a fixed string.
+.It Xo
+.Ft void
 .Fn panic "const char *msg" "..."
 .Xc
 .Pp