Fix off-by-one in printCommands path.
diff --git a/poppler/Gfx.cc b/poppler/Gfx.cc
index a533138..c6f0767 100644
--- a/poppler/Gfx.cc
+++ b/poppler/Gfx.cc
@@ -4014,7 +4014,7 @@
   if (printCommands) {
     printf("  marked content: %s ", args[0].getName());
     if (numArgs == 2)
-      args[2].print(stdout);
+      args[1].print(stdout);
     printf("\n");
     fflush(stdout);
   }
@@ -4034,7 +4034,7 @@
   if (printCommands) {
     printf("  mark point: %s ", args[0].getName());
     if (numArgs == 2)
-      args[2].print(stdout);
+      args[1].print(stdout);
     printf("\n");
     fflush(stdout);
   }