tools/nxstyle.c: Fix logic that detects if an operator is correctly delimited with spaces. sched/: Various changes because sched/ C files were used as Guinea Pigs to test nstyle.c.

sched/environ/env_dup.c

@@ -137,6 +137,3 @@ int env_dup(FAR struct task_group_s *group)
 }
 
 #endif /* CONFIG_DISABLE_ENVIRON */
-
-
-

sched/environ/env_putenv.c

@@ -114,6 +114,3 @@ errout:
 }
 
 #endif /* CONFIG_DISABLE_ENVIRON */
-
-
-

sched/environ/env_release.c

@@ -95,6 +95,3 @@ void env_release(FAR struct task_group_s *group)
 }
 
 #endif /* CONFIG_DISABLE_ENVIRON */
-
-
-

sched/environ/env_removevar.c

@@ -115,6 +115,3 @@ int env_removevar(FAR struct task_group_s *group, FAR char *pvar)
 }
 
 #endif /* CONFIG_DISABLE_ENVIRON */
-
-
-

sched/environ/env_unsetenv.c

@@ -133,6 +133,3 @@ int unsetenv(FAR const char *name)
 }
 
 #endif /* CONFIG_DISABLE_ENVIRON */
-
-
-