11628 typos detected by mandoc style

*** 10,20 ****
       #include <libproc.h>
  
       int
       Pisprocdir(struct ps_prochandle *P, const char *dir);
  
! DESECRIPTION
       The Pisprocdir() function determines whether or not the directory dir is
       the root of the /proc file-system.  This works across loopback file
       system (lofs) mounts and chroots.
  
  RETURN VALUES
--- 10,20 ----
       #include <libproc.h>
  
       int
       Pisprocdir(struct ps_prochandle *P, const char *dir);
  
! DESCRIPTION
       The Pisprocdir() function determines whether or not the directory dir is
       the root of the /proc file-system.  This works across loopback file
       system (lofs) mounts and chroots.
  
  RETURN VALUES
*** 28,33 ****
       See LOCKING in libproc(3LIB).
  
  SEE ALSO
       libproc(3LIB), proc(4), lofs(7FS)
  
! illumos                          May 11, 2016                          illumos
--- 28,33 ----
       See LOCKING in libproc(3LIB).
  
  SEE ALSO
       libproc(3LIB), proc(4), lofs(7FS)
  
! illumos                         August 27, 2019                        illumos