Fix build with poppler-21.12.0.

"no veto" rsadowski@

graphics/inkscape/patches/patch-src_extension_internal_pdfinput_pdf-parser_cpp

@@ -0,0 +1,17 @@
+$OpenBSD: patch-src_extension_internal_pdfinput_pdf-parser_cpp,v 1.19 2021/12/24 10:09:50 kili Exp $
+
+Fix build with poppler-21.11.0.
+From upstream commit 5724c21b9cb7b6176a7b36ca24068b148c817e82.
+
+Index: src/extension/internal/pdfinput/pdf-parser.cpp
+--- src/extension/internal/pdfinput/pdf-parser.cpp.orig
++++ src/extension/internal/pdfinput/pdf-parser.cpp
+@@ -2169,7 +2169,7 @@ void PdfParser::opSetFont(Object args[], int /*numArgs
+   }
+   if (printCommands) {
+     printf("  font: tag=%s name='%s' %g\n",
+-	   font->getTag()->getCString(),
++	   font->getTag().c_str(),
+ 	   font->getName() ? font->getName()->getCString() : "???",
+ 	   args[1].getNum());
+     fflush(stdout);