r26138 provided quick returns for count==0 for

[test|wait][all|any|some].  Here, set output values as well.
http://www.open-mpi.org/community/lists/users/2012/03/18790.php

This commit was SVN r26156.

The following SVN revision numbers were found above:
  r26138 --> open-mpi/ompi@1e92bc0fd1

ompi/mpi/c/testall.c

@@ -67,6 +67,7 @@ int MPI_Testall(int count, MPI_Request requests[], int *flag,
     }
 
     if (OPAL_UNLIKELY(0 == count)) {
+        *flag = true;
         return MPI_SUCCESS;
     }
 

ompi/mpi/c/testany.c

@@ -67,6 +67,8 @@ int MPI_Testany(int count, MPI_Request requests[], int *indx, int *completed, MP
     }
 
     if (OPAL_UNLIKELY(0 == count)) {
+        *completed = true;
+        *indx = MPI_UNDEFINED;
         return MPI_SUCCESS;
     }
 

ompi/mpi/c/testsome.c

@@ -69,6 +69,7 @@ int MPI_Testsome(int incount, MPI_Request *requests,
     }
 
     if (OPAL_UNLIKELY(0 == incount)) {
+        *outcount = MPI_UNDEFINED;
         return OMPI_SUCCESS;
     }
 

ompi/mpi/c/waitany.c

@@ -67,6 +67,7 @@ int MPI_Waitany(int count, MPI_Request *requests, int *indx, MPI_Status *status)
     }
 
     if (OPAL_UNLIKELY(0 == count)) {
+        *indx = MPI_UNDEFINED;
         return MPI_SUCCESS;
     }
 

ompi/mpi/c/waitsome.c

@@ -69,6 +69,7 @@ int MPI_Waitsome(int incount, MPI_Request *requests,
     }
 
     if (OPAL_UNLIKELY(0 == incount)) {
+        *outcount = MPI_UNDEFINED;
         return MPI_SUCCESS;
     }