Assorted spelling and case fixes.

diff --git a/dlls/uxtheme/draw.c b/dlls/uxtheme/draw.c
index 2e3eac4..4aa71a6 100644
--- a/dlls/uxtheme/draw.c
+++ b/dlls/uxtheme/draw.c
@@ -219,7 +219,7 @@
                                       BOOL transparent, COLORREF transcolor)
 {
     if(transparent) {
-        /* Ensure we dont pass any negative values to TransparentBlt */
+        /* Ensure we don't pass any negative values to TransparentBlt */
         return TransparentBlt(hdcDst, nXOriginDst, nYOriginDst, abs(nWidthDst), abs(nHeightDst),
                               hdcSrc, nXOriginSrc, nYOriginSrc, abs(nWidthSrc), abs(nHeightSrc),
                               transcolor);