[CIFuzz][NFC] Fix some comments. (#6130)

diff --git a/infra/cifuzz/affected_fuzz_targets.py b/infra/cifuzz/affected_fuzz_targets.py
index 22924bb..be35c5c 100644
--- a/infra/cifuzz/affected_fuzz_targets.py
+++ b/infra/cifuzz/affected_fuzz_targets.py
@@ -27,6 +27,7 @@
   """Removes all non affected fuzz targets in the out directory.
 
   Args:
+    clusterfuzz_deployment: The ClusterFuzz deployment object.
     out_dir: The location of the fuzz target binaries.
     files_changed: A list of files changed compared to HEAD.
     repo_path: The location of the OSS-Fuzz repo in the docker image.
diff --git a/infra/cifuzz/build_fuzzers.py b/infra/cifuzz/build_fuzzers.py
index 7831e0b..09d7c56 100644
--- a/infra/cifuzz/build_fuzzers.py
+++ b/infra/cifuzz/build_fuzzers.py
@@ -190,11 +190,14 @@
   """Checks the integrity of the built fuzzers.
 
   Args:
-    out_dir: The directory containing the fuzzer binaries.
+    workspace: The workspace used by CIFuzz.
     sanitizer: The sanitizer the fuzzers are built with.
+    language: The programming language the fuzzers are written in.
+    allowed_broken_targets_percentage (optional): A custom percentage of broken
+        targets to allow.
 
   Returns:
-    True if fuzzers are correct.
+    True if fuzzers pass OSS-Fuzz's build check.
   """
   if not os.path.exists(workspace.out):
     logging.error('Invalid out directory: %s.', workspace.out)
diff --git a/infra/cifuzz/get_coverage.py b/infra/cifuzz/get_coverage.py
index f674e95..a022e83 100644
--- a/infra/cifuzz/get_coverage.py
+++ b/infra/cifuzz/get_coverage.py
@@ -44,7 +44,7 @@
       target: The name of the fuzz target whose coverage is requested.
 
     Returns:
-      A list of files that the fuzz targets covers or None.
+      A list of files that the fuzz target covers or None.
     """
     raise NotImplementedError('Child class must implement method.')
 
@@ -83,7 +83,7 @@
       target: The name of the fuzz target whose coverage is requested.
 
     Returns:
-      A list of files that the fuzz targets covers or None.
+      A list of files that the fuzz target covers or None.
     """
     target_cov = self.get_target_coverage_report(target)
     if not target_cov:
@@ -165,7 +165,7 @@
       target: The name of the fuzz target whose coverage is requested.
 
     Returns:
-      A list of files that the fuzz targets covers or None.
+      A list of files that the fuzz target covers or None.
     """
     # TODO(jonathanmetzman): Implement this.
     raise NotImplementedError('Implementation TODO.')