gn: fix documentation typo

tools/gn/function_get_path_info.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "tools/gn/err.h"
 #include "tools/gn/filesystem_utils.h"
 #include "tools/gn/functions.h"
 #include "tools/gn/parse_tree.h"
 #include "tools/gn/scope.h"
 #include "tools/gn/value.h"
@@ skipping 156 matching lines @@
     "      given file, not including a trailing slash.\n"
     "        \"//foo/bar/baz.txt\" => \"//out/Default/obj/foo/bar\"\n"
 
     "  \"gen_dir\"\n"
     "      The generated file directory corresponding to the path of the\n"
     "      given file, not including a trailing slash.\n"
     "        \"//foo/bar/baz.txt\" => \"//out/Default/gen/foo/bar\"\n"
     "\n"
     "  \"abspath\"\n"
     "      The full absolute path name to the file or directory. It will be\n"
-    "      resolved relative to the currebt directory, and then the source-\n"
+    "      resolved relative to the current directory, and then the source-\n"
     "      absolute version will be returned. If the input is system-\n"
     "      absolute, the same input will be returned.\n"
     "        \"foo/bar.txt\" => \"//mydir/foo/bar.txt\"\n"
     "        \"foo/\" => \"//mydir/foo/\"\n"
     "        \"//foo/bar\" => \"//foo/bar\"  (already absolute)\n"
     "        \"/usr/include\" => \"/usr/include\"  (already absolute)\n"
     "\n"
     "      If you want to make the path relative to another directory, or to\n"
     "      be system-absolute, see rebase_path().\n"
     "\n"
@@ skipping 54 matching lines @@
         return Value();
     }
     return result;
   }
 
   *err = Err(args[0], "Path must be a string or a list of strings.");
   return Value();
 }
 
 }  // namespace functions