Fix a (harmless) build warning

nyalldawson · nyalldawson · commit 2c278f311840 · 2018-10-31T07:37:33.000+10:00
diff --git a/src/core/mesh/qgsmeshvectorrenderer.cpp b/src/core/mesh/qgsmeshvectorrenderer.cpp
@@ -202,7 +202,7 @@ bool QgsMeshVectorRenderer::calcVectorLineEnd(
 
 double QgsMeshVectorRenderer::calcExtentBufferSize() const
 {
-  double buffer;
+  double buffer = 0;
   switch ( mCfg.shaftLengthMethod() )
   {
     case QgsMeshRendererVectorSettings::ArrowScalingMethod::MinMax:

Original file line number	Diff line number	Diff line change
`@@ -202,7 +202,7 @@ bool QgsMeshVectorRenderer::calcVectorLineEnd(`
`202`	`202`
`203`	`203`	`double QgsMeshVectorRenderer::calcExtentBufferSize() const`
`204`	`204`	`{`
`205`		`- double buffer;`
	`205`	`+ double buffer = 0;`
`206`	`206`	`switch ( mCfg.shaftLengthMethod() )`
`207`	`207`	`{`
`208`	`208`	`case QgsMeshRendererVectorSettings::ArrowScalingMethod::MinMax:`