more .Os cleanup, remove some trailing whitespace, cleanse some .Nm

1 files changed, 4 insertions, 2 deletions

diff --git a/share/man/man3/intro.3 b/share/man/man3/intro.3
index d725dfefc6a..ce621df08ea 100644
--- a/share/man/man3/intro.3
+++ b/share/man/man3/intro.3
@@ -35,7 +35,7 @@
 .\"
 .Dd June 5, 1993
 .Dt INTRO 3
-.Os BSD 4
+.Os
 .Sh NAME
 .Nm intro
 .Nd introduction to the C libraries
@@ -67,7 +67,9 @@ it is not necessary
 to supply the loader flag
 .Fl l Ns Ar c
 for these functions.
-There are several `libraries' or groups of functions included inside of
+There are several
+.Dq libraries
+or groups of functions included inside of
 .Xr libc : the standard
 .Tn I/O
 routines,