ext/gd: phpinfo() to be able to display libjpeg 10.0 support.

Fix #21431

Co-Authored-By: rainerjung

close GH-21432

NEWS

@@ -5,6 +5,10 @@ PHP                                                                        NEWS
 - Bz2:
   . Fix truncation of total output size causing erroneous errors. (ndossche)
 
+- GD:
+  . Fixed bug GH-21431 (phpinfo() to display libJPEG 10.0 support).
+    (David Carlier)
+
 - Opcache:
   . Fixed bug GH-20838 (JIT compiler produces wrong arithmetic results).
     (Dmitry, iliaal)

ext/gd/libgd/gd_jpeg.c

@@ -125,6 +125,10 @@ const char * gdJpegGetVersionString()
 			return "9 compatible";
 			break;
 
+		case 100:
+			return "10 compatible";
+			break;
+
 		default:
 			return "unknown";
 	}