Don't indent multiline versionadded/deprecated tags

Turns out there isn't any valid ones anyway - the only
multiline versionadded tags are due to incorrect ordering
of brief/since tags (which is fixed in a different PR)

python/analysis/auto_generated/network/qgsgraph.sip.in

@@ -16,7 +16,7 @@ class QgsGraphEdge
 %Docstring
 
 .. versionadded:: 3.0
-                   This class implements a graph edge
+ This class implements a graph edge
 %End
 
 %TypeHeaderCode

python/analysis/auto_generated/network/qgsnetworkdistancestrategy.sip.in

@@ -13,7 +13,7 @@ class QgsNetworkDistanceStrategy : QgsNetworkStrategy
 %Docstring
 
 .. versionadded:: 3.0
-                   Strategy for caclulating edge cost based on its length. Should be
+ Strategy for caclulating edge cost based on its length. Should be
 used for finding shortest path between two points.
 %End
 

python/analysis/auto_generated/network/qgsnetworkstrategy.sip.in

@@ -20,7 +20,7 @@ class QgsNetworkStrategy
 %Docstring
 
 .. versionadded:: 3.0
-                   QgsNetworkStrategy defines strategy used for calculation of the edge cost. For example it can
+ QgsNetworkStrategy defines strategy used for calculation of the edge cost. For example it can
 take into account travel distance, amount of time or money. Currently there are two strategies
 implemented in the analysis library: QgsNetworkDistanceStrategy and QgsNetworkSpeedStrategy.
 QgsNetworkStrategy implemented using "strategy" design pattern.

python/analysis/auto_generated/network/qgsvectorlayerdirector.sip.in

@@ -15,7 +15,7 @@ class QgsVectorLayerDirector : QgsGraphDirector
 %Docstring
 
 .. versionadded:: 3.0
-                   Determine making the graph from vector line layer
+ Determine making the graph from vector line layer
 %End
 
 %TypeHeaderCode

python/analysis/auto_generated/processing/qgsnativealgorithms.sip.in

@@ -14,7 +14,7 @@ class QgsNativeAlgorithms: QgsProcessingProvider
 %Docstring
 
 .. versionadded:: 3.0
-                   Native c++ processing algorithm provider.
+ Native c++ processing algorithm provider.
 %End
 
 %TypeHeaderCode

python/core/auto_generated/qgsmaprendererjob.sip.in

@@ -99,18 +99,18 @@ This should not be used if cached labeling was redrawn - see usedCachedLabels().
 %Docstring
 
 .. versionadded:: 3.0
-                  Set the feature filter provider used by the QgsRenderContext of
-                  each LayerRenderJob.
-                  Ownership is not transferred and the provider must not be deleted
-                  before the render job.
+Set the feature filter provider used by the QgsRenderContext of
+each LayerRenderJob.
+Ownership is not transferred and the provider must not be deleted
+before the render job.
 %End
 
     const QgsFeatureFilterProvider *featureFilterProvider() const;
 %Docstring
 
 .. versionadded:: 3.0
-                  Returns the feature filter provider used by the QgsRenderContext of
-                  each LayerRenderJob.
+Returns the feature filter provider used by the QgsRenderContext of
+each LayerRenderJob.
 %End
 
     struct Error

python/gui/auto_generated/qgsmaplayerconfigwidgetfactory.sip.in

@@ -14,7 +14,7 @@ class QgsMapLayerConfigWidgetFactory
 %Docstring
 
 .. versionadded:: 2.16
-                  Factory class for creating custom map layer property pages
+Factory class for creating custom map layer property pages
 %End
 
 %TypeHeaderCode

scripts/sipify.pl

@@ -217,11 +217,11 @@ sub processDoxygenLine {
         return "";
     }
     if ( $line =~ m/\\since .*?([\d\.]+)/i ) {
-        $INDENT = '                  ';
+        $INDENT = '';
         return "\n.. versionadded:: $1\n";
     }
     if ( $line =~ m/\\deprecated (.*)/i ) {
-        $INDENT = '                ';
+        $INDENT = '';
         return "\n.. deprecated:: $1\n";
     }