CMakeLists.txt,cosmetics: normalize if() formatting
CMakeLists.txt,cosmetics: normalize if() formatting

+ break a long line

Change-Id: Ia508d517e89dd2109b655c220b66d8aa834a3b52

webmproject/libwebp,webmproject/libwebp,PKRoma/libwebp,webmproject/libwebp,webmproject/libwebp,PKRoma/libwebp,PKRoma/libwebp,PKRoma/libwebp,webmproject/libwebp,PKRoma/libwebp,PKRoma/libwebp