Fix Whitespace (#6063)

* Fix Whitespace

No functional changes. This commit removes trailing spaces, undesired line breaks, and formatting screwups.

* Remove more useless line breaks in license (500 out of 630 license copies do NOT use double line breaks here)

---------

Co-authored-by: Krishty <krishty@krishty.com>
Co-authored-by: Kim Kulling <kimkulling@users.noreply.github.com>

code/PostProcessing/EmbedTexturesProcess.cpp

@@ -113,14 +113,14 @@ std::string EmbedTexturesProcess::tryToFindValidPath(const std::string &imagePat
     }
 
     // In unix systems, '\' is a valid file name character, but some files may use \ as a directory separator.
-    // Try replacing '\' by '/'. 
+    // Try replacing '\' by '/'.
     if (mIOHandler->getOsSeparator() != '\\' && imagePath.find('\\') != std::string::npos) {
         ASSIMP_LOG_WARN("EmbedTexturesProcess: Cannot find image '", imagePath, "' in root folder. Will try replacing directory separators.");
         testPath = imagePath;
         std::replace(testPath.begin(), testPath.end(), '\\', mIOHandler->getOsSeparator());
         return tryToFindValidPath(testPath);
     }
-    
+
     ASSIMP_LOG_ERROR("EmbedTexturesProcess: Unable to embed texture: ", imagePath, ".");
     return {};
 }