Various markup and spelling fixes.

PR:		75574
Submitted by:	Nobuyuki Koganemaru <n-kogane@syd.odn.ne.jp> (original version)

lib/libc/net/inet6_option_space.3

@@ -397,7 +397,7 @@ called for a given ancillary data object,
 .Fa *tptrp
 must be set to
 .Dv NULL .
-.Pa
+.Pp
 This function starts searching for an option of the specified type
 beginning after the value of
 .Fa *tptrp .

lib/libdisk/libdisk.3

@@ -169,7 +169,7 @@ field can be one of the following values:
 .Ql whole, unknown, fat, freebsd, extended, part, unused .
 .Pp
 These are the valid
-.Ql flag
+.Ql flags
 values for a
 .Ql struct chunk .
 .Bl -tag -offset indent -width CHUNK_BSD_COMPATXX
@@ -293,9 +293,9 @@ rounds
 up to next track according to the BIOS geometry.
 .Pp
 .Fn Prev_Track_Aligned
-checks if
+rounds
 .Ql offset
-is aligned on a track according to the BIOS geometry.
+up to previous track according to the BIOS geometry.
 .Pp
 .Fn Create_Chunk_DWIM
 creates a partition inside the given parent of the given size, and

lib/libipx/ipx.3

@@ -91,7 +91,7 @@ a small hexadecimal number, and the entirety is taken as a network-byte-ordered
 quantity to be zero extended in the high-network-order bytes.
 Next, the field is inspected for hyphens, in which case
 the field is assumed to be a number in decimal notation
-with hyphens separating the millenia.
+with hyphens separating the millennia.
 Next, the field is assumed to be a number:
 It is interpreted
 as hexadecimal if there is a leading

lib/libstand/libstand.3

@@ -580,6 +580,7 @@ and thus for all device-related I/O.
 .Ft int
 .Fn devclose "struct open_file *of"
 .Xc
+.Pp
 Close the device allocated for
 .Fa of .
 The device driver itself will already have been called for the close; this call

lib/libutil/login_cap.3

@@ -322,7 +322,7 @@ application, but is used indirectly via
 .Fn login_getstyle .
 .It Fn login_getpath
 This function returns a list of directories separated by colons
-.Ql &: .
+.Ql \&: .
 Capability tags for which this function is called consist of a list of
 directories separated by spaces.
 .It Fn login_getcaptime
@@ -401,7 +401,7 @@ If no valid authorisation list was found from the previous step, then
 default to "passwd" as the authorisation list.
 .It
 If 'style' is not NULL or empty, look for it in the list of authorisation
-methods found from the pprevious step.
+methods found from the previous step.
 If 'style' is NULL or an empty string, then default to "passwd"
 authorisation.
 .It