Small fix for File::createInputStream.

modules/juce_audio_processors/processors/juce_AudioProcessor.h

@@ -107,7 +107,7 @@ public:
         let this pass through without being overwritten or cleared.
 
         Also note that the buffer may have more channels than are strictly necessary,
-        but your should only read/write from the ones that your filter is supposed to
+        but you should only read/write from the ones that your filter is supposed to
         be using.
 
         The number of samples in these buffers is NOT guaranteed to be the same for every

modules/juce_core/files/juce_File.cpp

@@ -654,8 +654,10 @@ bool File::startAsProcess (const String& parameters) const
 //==============================================================================
 FileInputStream* File::createInputStream() const
 {
-    if (existsAsFile())
-        return new FileInputStream (*this);
+    ScopedPointer<FileInputStream> fin (new FileInputStream (*this));
+
+    if (fin->openedOk())
+        return fin.release();
 
     return nullptr;
 }