Use SAL_MAX_INT32 in CheckStringPositionArgument()

... as that does not affect the result string length.

Change-Id: Ia4426b4444845b3966da6a8c46089d8a98a38cb0
Reviewed-on: https://gerrit.libreoffice.org/62374Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Jenkins

sc/source/core/inc/interpre.hxx

@@ -1081,9 +1081,9 @@ inline bool ScInterpreter::CheckStringPositionArgument( double & fVal )
         fVal = 0.0;
         return false;
     }
-    else if (fVal > kScInterpreterMaxStrLen)
+    else if (fVal > SAL_MAX_INT32)
     {
-        fVal = static_cast<double>(kScInterpreterMaxStrLen);
+        fVal = static_cast<double>(SAL_MAX_INT32);
         return false;
     }
     return true;