get_rank and get_mpicomm

Make psb_get_rank and  psb_get_mpicomm functions, not
subroutines. Document same.

docs/html/node103.html

@@ -54,7 +54,7 @@ psb_get_mpicomm -- Get the MPI communicator</A>
 
 <P>
 <PRE>
-call psb_get_mpicomm(icontxt, icomm)
+icomm = psb_get_mpicomm(icontxt)
 </PRE>
 
 <P>
@@ -85,7 +85,7 @@ Specified as: an integer variable.
 <DT><STRONG><B>On Return</B></STRONG></DT>
 <DD>
 </DD>
-<DT><STRONG>icomm</STRONG></DT>
+<DT><STRONG>Function value</STRONG></DT>
 <DD>The MPI communicator associated with the  PSBLAS virtual parallel machine.
 <BR>
 Scope: <B>global</B>.

docs/html/node104.html

@@ -54,7 +54,7 @@ psb_get_rank -- Get the MPI rank</A>
 
 <P>
 <PRE>
-call psb_get_rank(rank, icontxt, id)
+rank = psb_get_rank(icontxt, id)
 </PRE>
 
 <P>
@@ -104,7 +104,7 @@ Specified as: an integer value. <!-- MATH
 <DT><STRONG><B>On Return</B></STRONG></DT>
 <DD>
 </DD>
-<DT><STRONG>rank</STRONG></DT>
+<DT><STRONG>Funciton value</STRONG></DT>
 <DD>The MPI rank associated with the  PSBLAS process <SPAN CLASS="MATH"><IMG
  WIDTH="18" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
  SRC="img138.png"

docs/html/node135.html

@@ -60,7 +60,7 @@ Mathematics Department, Macquarie University, Sydney.
 The command line arguments were: <BR>
  <STRONG>latex2html</STRONG> <TT>-local_icons -noaddress -dir ../../html userhtml.tex</TT>
 <P>
-The translation was initiated on 2019-05-28
+The translation was initiated on 2019-11-20
 <BR><HR>
 
 </BODY>