[GRASS] do not align to input by default in r.slope.aspect, fixes #9979

Author: blazek

src/plugins/grass/modules/r.slope.aspect.aspect.qgm

@@ -4,4 +4,5 @@
 <qgisgrassmodule label="Create aspect raster from DEM (digital elevation model)" module="r.slope.aspect">
 	<option key="elevation" />
 	<option key="aspect" />
+	<flag key="a" answer="on" hidden="yes" />
 </qgisgrassmodule>

src/plugins/grass/modules/r.slope.aspect.slope.qgm

@@ -4,4 +4,5 @@
 <qgisgrassmodule label="Create slope raster from DEM (digital elevation model)" module="r.slope.aspect">
 	<option key="elevation" />
 	<option key="slope" />
+	<flag key="a" answer="on" hidden="yes" />
 </qgisgrassmodule>

src/plugins/grass/modules/r.slope.qgm

@@ -4,5 +4,6 @@
 <qgisgrassmodule label="Create slope raster from DEM (digital elevation model)" module="r.slope.aspect">
 	<option key="elevation" />
 	<option key="slope" />
-        <option key="format" advanced="yes" />
+	<option key="format" advanced="yes" />
+	<flag key="a" answer="on" hidden="yes" />
 </qgisgrassmodule>