trim 1 char, not 2

Author: fredemmott

src/CLIColoredUnifiedDiff.php

@@ -68,7 +68,7 @@ final protected static function join(vec<string> $lines): string {
   final protected static function colorDeleteLineWithIntralineEdits(
     vec<DiffOp<string>> $ops,
   ): string {
-    $line = self::DELETE_COLOR.'- ';
+    $line = self::DELETE_COLOR.'-';
     foreach ($ops as $op) {
       if ($op is DiffKeepOp<_>) {
         $line .= $op->getContent();
@@ -89,7 +89,7 @@ final protected static function colorDeleteLineWithIntralineEdits(
   final protected static function colorInsertLineWithIntralineEdits(
     vec<DiffOp<string>> $ops,
   ): string {
-    $line = self::INSERT_COLOR.'+ ';
+    $line = self::INSERT_COLOR.'+';
     foreach ($ops as $op) {
       if ($op is DiffKeepOp<_>) {
         $line .= $op->getContent();

src/ColoredUnifiedDiff.php

@@ -106,8 +106,8 @@ final public static function create(
           && \levenshtein($line, $next) - 2 <= (0.5 * (Str\length($line) - 2))
         ) {
           // Drop the prefix
-          $line = Str\slice($line, 2);
-          $next = Str\slice($next, 2);
+          $line = Str\slice($line, 1);
+          $next = Str\slice($next, 1);
           $lines = Vec\drop($lines, 1);
 
           $intraline = StringDiff::characters($line, $next)->getDiff();