Use proper capitalization for some common words and prefixes.

Thank you Nick!

Closes #10380

Signed-off-by: Nicolas Riendeau <nriendeau@mythtv.org>

Author: knowledgejunkie

mythtv/libs/libmyth/programinfo.cpp

@@ -1611,7 +1611,7 @@ void ProgramInfo::ToMap(InfoMap &progMap,
             break;
         case kProgramInfoTypeVideoBD :
             mediaType = "bluraydisc";
-            mediaTypeString = QObject::tr("Blu-Ray Disc");
+            mediaTypeString = QObject::tr("Blu-ray Disc");
             break;
         case kProgramInfoTypeRecording : // Fall through
         default :

mythtv/libs/libmythtv/ringbuffer.cpp

@@ -1332,7 +1332,7 @@ QString RingBuffer::BitrateToString(uint64_t rate, bool hz)
     }
     else if (rate >= 1000)
     {
-        msg = hz ? QObject::tr("%1KHz") : QObject::tr("%1Kbps");
+        msg = hz ? QObject::tr("%1kHz") : QObject::tr("%1kbps");
         bitrate = (float)rate / 1000.0;
         range = hz ? 1 : 0;
     }