Normalize whitespace.

Remove trailing whitespace and make sure each file ends with a newline.

.gitignore

@@ -3,4 +3,4 @@
 nimcache
 *.nimproject*
 *.exe
-*.qmlc
+*.qmlc

examples/abstractitemmodel/main.nim.cfg

@@ -1 +1 @@
---path:"../../src"
+--path:"../../src"

examples/slotsandproperties/main.nim.cfg

@@ -1 +1 @@
---path:"../../src"
+--path:"../../src"

src/private/qmodelindex.nim

@@ -51,7 +51,7 @@ proc child*(self: QModelIndex, row: cint, column: cint): QModelIndex =
 proc sibling*(self: QModelIndex, row: cint, column: cint): QModelIndex =
   ## Return the sibling index associated to the given row and column
   newQModelIndex(dos_qmodelindex_sibling(self.vptr, row, column), Ownership.Take)
-  
-proc internalPointer(self: QModelIndex): pointer = 
+
+proc internalPointer(self: QModelIndex): pointer =
   ## Return the internal pointer
   dos_qmodelindex_internalPointer(self.vptr)