Make sure that labeling is used consistently in all function headers.

sched/environ/env_clearenv.c

@@ -60,7 +60,7 @@
  * Parameters:
  *   None
  *
- * Return Value:
+ * Returned Value:
  *   None
  *
  * Assumptions:

sched/environ/env_dup.c

@@ -67,7 +67,7 @@
  *   group The child task group to receive the newly allocated copy of the
  *        parent task groups environment structure.
  *
- * Return Value:
+ * Returned Value:
  *   zero on success
  *
  * Assumptions:

sched/environ/env_findvar.c

@@ -86,7 +86,7 @@ static bool env_cmpname(const char *pszname, const char *peqname)
  *   group The task group containging environment array to be searched.
  *   pname The variable name to find
  *
- * Return Value:
+ * Returned Value:
  *   A pointer to the name=value string in the environment
  *
  * Assumptions:

sched/environ/env_getenv.c

@@ -63,7 +63,7 @@
  * Parameters:
  *   name - The name of the variable to find.
  *
- * Return Value:
+ * Returned Value:
  *   The value of the valiable (read-only) or NULL on failure
  *
  * Assumptions:

sched/environ/env_getenvironptr.c

@@ -60,7 +60,7 @@
  * Parameters:
  *   None
  *
- * Return Value:
+ * Returned Value:
  *   A pointer to the per-thread environ variable.
  *
  * Assumptions:

sched/environ/env_putenv.c

@@ -65,7 +65,7 @@
  * Parameters:
  *   name=value string describing the environment setting to add/modify
  *
- * Return Value:
+ * Returned Value:
  *   Zero on sucess
  *
  * Assumptions:

sched/environ/env_release.c

@@ -65,7 +65,7 @@
  *   group Identifies the task group containing the environment structure
  *     to be released.
  *
- * Return Value:
+ * Returned Value:
  *   None
  *
  * Assumptions:

sched/environ/env_removevar.c

@@ -60,7 +60,7 @@
  *   group The task group with the environment containing the name=value pair
  *   pvar A pointer to the name=value pair in the restroom
  *
- * Return Value:
+ * Returned Value:
  *   Zero on success
  *
  * Assumptions:

sched/environ/env_setenv.c

@@ -71,7 +71,7 @@
  *   value - The new value of the variable
  *   overwrite - Replace any existing value if non-zero.
  *
- * Return Value:
+ * Returned Value:
  *   Zero on success
  *
  * Assumptions:

sched/environ/env_unsetenv.c

@@ -63,7 +63,7 @@
  * Parameters:
  *   name - The name of the variable to delete
  *
- * Return Value:
+ * Returned Value:
  *   Zero on success
  *
  * Assumptions: