[GR-11843] Quantmod package tests now passing.

PullRequest: fastr/1737

com.oracle.truffle.r.test.packages/gated

@@ -14,3 +14,4 @@ nnet
 compare
 shinythemes
 ROCR
+quantmod

com.oracle.truffle.r.test.packages/test.output.filter

@@ -81,4 +81,10 @@ ROCR => D+1/Error in get("par.postscript", pos = "CheckExEnv") :
 
 # --------
 # ROCR: not clear why FastR does not produce this message, but doesn't seem important
-ROCR => D/detaching ‘ROCR.hiv’
+ROCR => D/detaching ‘ROCR.hiv’
\ No newline at end of file
+
+# --------
+# quantmod: PDF device not supported in saveChart()
+quantmod => D-2/  PDF device not supported.
+quantmod => D/  incomplete final line found
+quantmod => s/There were [0-9]+ warnings \(use warnings\(\) to see them\)/