Fix bug in UnneededElse.

Author: dereuromark

PSR2R/Sniffs/ControlStructures/UnneededElseSniff.php

@@ -145,7 +145,7 @@ protected function isNotLastCondition(File $phpcsFile, int $stackPtr): bool {
 
 		$nextScopeEndIndex = $tokens[$stackPtr]['scope_closer'];
 
-		$nextConditionStartIndex = $phpcsFile->findNext(T_WHITESPACE, $nextScopeEndIndex - 1, null, true);
+		$nextConditionStartIndex = $phpcsFile->findNext(T_WHITESPACE, $nextScopeEndIndex + 1, null, true);
 
 		if (in_array($tokens[$nextConditionStartIndex]['code'], [T_ELSEIF, T_ELSE], true)) {
 			return true;