fs: fix implicitly concatenated strings on a single line

Summary:
Similar to D65389031, this diff fixes the implicitly concatenated strings on a
single line.

While it is valid Python syntax to concatenate multiple string or byte literals
implicitly (via whitespace delimiters), it is unnecessary and negatively affects
code readability.

This diff used `ruff` to fix those strings, and then used `arc lint` to fix the
format, and also some manual changes (ruff does not support automatically
fixing mixed usage of f-strings and regular strings).
```
$ ruff check --select ISC001 --fix
$ arc lint
```

Reviewed By: MichaelCuevas

Differential Revision: D66881295

fbshipit-source-id: c977ef66110cb3e7d477f7020e47a1dbcaf56fee

eden/fs/cli/config.py

@@ -1387,13 +1387,13 @@ def get_field(key: str) -> str:
             if isinstance(value, str):
                 return value
             raise CheckoutConfigCorruptedError(
-                f"{config_path} is missing {key} in " "[repository]"
+                f"{config_path} is missing {key} in [repository]"
             )
 
         scm_type = get_field("type")
         if scm_type not in SUPPORTED_REPOS:
             raise CheckoutConfigCorruptedError(
-                f'repository "{config_path}" has unsupported type ' f'"{scm_type}"'
+                f'repository "{config_path}" has unsupported type "{scm_type}"'
             )
 
         mount_protocol = repository.get("protocol")

eden/fs/cli/main.py

@@ -881,17 +881,15 @@ def run(self, args: argparse.Namespace) -> int:
         # mount, but check this here just to fail early if things look wrong.)
         try:
             for _ in os.listdir(args.path):
-                print_stderr(f"error: destination path {args.path} " "is not empty")
+                print_stderr(f"error: destination path {args.path} is not empty")
                 return 1
         except OSError as ex:
             if ex.errno == errno.ENOTDIR:
-                print_stderr(
-                    f"error: destination path {args.path} " "is not a directory"
-                )
+                print_stderr(f"error: destination path {args.path} is not a directory")
                 return 1
             elif ex.errno != errno.ENOENT:
                 print_stderr(
-                    f"error: unable to access destination path " f"{args.path}: {ex}"
+                    f"error: unable to access destination path {args.path}: {ex}"
                 )
                 return 1
 
@@ -994,7 +992,7 @@ def is_nfs_default():
                     commit = repo.get_commit_hash(args.rev)
                 except Exception as ex:
                     print_stderr(
-                        f"error: unable to find hash for commit " f"{args.rev!r}: {ex}"
+                        f"error: unable to find hash for commit {args.rev!r}: {ex}"
                     )
                     return 1
             else:

eden/fs/cli/util.py

@@ -395,7 +395,7 @@ def __init__(
         self._hg_binary = os.environ.get("EDEN_HG_BINARY", "hg")
 
     def __repr__(self) -> str:
-        return f"HgRepo(source={self.source!r}, " f"working_dir={self.working_dir!r})"
+        return f"HgRepo(source={self.source!r}, working_dir={self.working_dir!r})"
 
     # pyre-fixme[2]: Parameter must be annotated.
     def _run_hg(self, args: List[str], stderr_output=None) -> bytes:
@@ -420,7 +420,7 @@ def __init__(self, source: str, working_dir: Optional[str] = None) -> None:
         super(GitRepo, self).__init__("git", source, working_dir)
 
     def __repr__(self) -> str:
-        return f"GitRepo(source={self.source!r}, " f"working_dir={self.working_dir!r})"
+        return f"GitRepo(source={self.source!r}, working_dir={self.working_dir!r})"
 
     def _run_git(self, args: List[str]) -> bytes:
         cmd = ["git"] + args