Adding special command line option that is now needed for the one ecpg...

Adding special command line option that is now needed for the one ecpg regression test that was changed.

src/tools/msvc/ecpg_regression.proj

@@ -42,6 +42,9 @@
   <CreateProperty Value="-r prepare" Condition="'%(Pgc.FileName)'=='autoprep'">
    <Output TaskParameter="Value" PropertyName="ECPGPARAM" />
   </CreateProperty>
+  <CreateProperty Value="-i" Condition="'%(Pgc.FileName)'=='strings'">
+   <Output TaskParameter="Value" PropertyName="ECPGPARAM" />
+  </CreateProperty>
 
   <!-- Run ECPG and the Visual C++ compiler on the files. Don't bother with dependency check between the steps -->
   <Exec WorkingDirectory="%(Pgc.RelativeDir)" Command="$(OUTDIR)ecpg\ecpg -I ../../include --regression $(ECPGPARAM) -o %(Pgc.Filename).c %(Pgc.Filename).pgc" />