Fix some spelling errors in lmms (#5151)

plugins/monstro/Monstro.cpp

@@ -328,7 +328,7 @@ void MonstroSynth::renderOutput( fpp_t _frames, sampleFrame * _buf  )
 	float o1l_f;
 	float o1r_f;
 	float o1l_p = m_osc1l_phase + o1lpo; // we add phase offset here so we don't have to do it every frame
-	float o1r_p = m_osc1r_phase + o1rpo; // then substract it again after loop...
+	float o1r_p = m_osc1r_phase + o1rpo; // then subtract it again after loop...
 	float o1_pw;
 
 	// osc2 vars

plugins/sid/envelope.cc

@@ -134,7 +134,7 @@ reg16 EnvelopeGenerator::rate_counter_period[] = {
 // of ENV3 with another timed loop to fully synchronize with ENV3.
 //
 // At the first period when an exponential counter period larger than one
-// is used (decay or relase), one extra cycle is spent before the envelope is
+// is used (decay or release), one extra cycle is spent before the envelope is
 // decremented. The envelope output is then delayed one cycle until the state
 // is changed to attack. Now one cycle less will be spent before the envelope
 // is incremented, and the situation is normalized.

src/core/audio/AudioPulseAudio.cpp

@@ -139,7 +139,7 @@ static void stream_state_callback( pa_stream *s, void * userdata )
 
 		case PA_STREAM_FAILED:
 		default:
-			qCritical( "Stream errror: %s\n",
+			qCritical( "Stream error: %s\n",
 					pa_strerror(pa_context_errno(
 						pa_stream_get_context( s ) ) ) );
 	}

src/core/main.cpp

@@ -165,7 +165,7 @@ void printHelp()
 		"  rendertracks <project> [options...]   Render each track to a different file\n"
 		"  upgrade <in> [out]                    Upgrade file <in> and save as <out>\n"
 		"                                        Standard out is used if no output file\n"
-		"                                        is specifed\n"
+		"                                        is specified\n"
 		"\nGlobal options:\n"
 		"      --allowroot                Bypass root user startup check (use with\n"
 		"          caution).\n"

src/gui/widgets/EnvelopeAndLfoView.cpp

@@ -419,8 +419,8 @@ void EnvelopeAndLfoView::paintEvent( QPaintEvent * )
 	p.fillRect( x5, y_base - 1, 2, 2, end_points_color );
 
 
-	int LFO_GRAPH_W = s_lfoGraph->width() - 3;      // substract border
-	int LFO_GRAPH_H = s_lfoGraph->height() - 6;	// substract border
+	int LFO_GRAPH_W = s_lfoGraph->width() - 3;      // subtract border
+	int LFO_GRAPH_H = s_lfoGraph->height() - 6;	// subtract border
 	int graph_x_base = LFO_GRAPH_X + 2;
 	int graph_y_base = LFO_GRAPH_Y + 3 + LFO_GRAPH_H / 2;