project: rename UncommitedFiles to UncommittedFiles

Fix typo in UncommitedFiles across project.py and HasChanges.

Bug: 553599402
Change-Id: I2b9b606b4c9a47fd998e50cca976545fcd783771
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/632881
Tested-by: Gavin Mak <gavinmak@google.com>
Reviewed-by: Brian Gan <brgan@google.com>
Commit-Queue: Gavin Mak <gavinmak@google.com>

project.py

diff --git a/project.py b/project.py
index 783aead..2d75d34 100644
--- a/project.py
+++ b/project.py
@@ -986,7 +986,7 @@
 
         return matched
 
-    def UncommitedFiles(self, get_all=True):
+    def UncommittedFiles(self, get_all: bool = True) -> List[str]:
         """Returns a list of strings, uncommitted files in the git tree.
 
         Args:
@@ -1023,9 +1023,9 @@
         """Returns a list of strings, untracked files in the git tree."""
         return self.work_git.LsOthers()
 
-    def HasChanges(self):
+    def HasChanges(self) -> bool:
         """Returns true if there are uncommitted changes."""
-        return bool(self.UncommitedFiles(get_all=False))
+        return bool(self.UncommittedFiles(get_all=False))
 
     def PrintWorkTreeStatus(self, output_redir=None, quiet=False, local=False):
         """Prints the status of the repository to stdout.