diff --git a/lib/libc/aarch64/sys/Makefile.inc b/lib/libc/aarch64/sys/Makefile.inc
index eb8b600208b7..7cb0544a2997 100644
--- a/lib/libc/aarch64/sys/Makefile.inc
+++ b/lib/libc/aarch64/sys/Makefile.inc
@@ -1,13 +1,12 @@
-
 MIASM:=	${MIASM:Nfreebsd[467]_*}
 
 SRCS+=	__vdso_gettc.c \
 	sched_getcpu_gen.c
 
 MDASM=	cerror.S \
 	syscall.S \
 	vfork.S
 
 # Don't generate default code for these syscalls:
 NOASM+=	sbrk.o \
 	vfork.o
diff --git a/lib/libc/amd64/sys/Makefile.inc b/lib/libc/amd64/sys/Makefile.inc
index 43af1d2a85a2..32c03ccf2963 100644
--- a/lib/libc/amd64/sys/Makefile.inc
+++ b/lib/libc/amd64/sys/Makefile.inc
@@ -1,12 +1,10 @@
-#	from: Makefile.inc,v 1.1 1993/09/03 19:04:23 jtc Exp
-
 SRCS+=	\
 	amd64_get_fsbase.c \
 	amd64_get_gsbase.c \
 	amd64_set_fsbase.c \
 	amd64_set_gsbase.c
 
 MDASM=	vfork.S cerror.S getcontext.S
 
 # Don't generate default code for these syscalls:
 NOASM+=	sbrk.o vfork.o
diff --git a/lib/libc/arm/sys/Makefile.inc b/lib/libc/arm/sys/Makefile.inc
index dcc1bdb3ea03..398ac494f2bc 100644
--- a/lib/libc/arm/sys/Makefile.inc
+++ b/lib/libc/arm/sys/Makefile.inc
@@ -1,8 +1,7 @@
-
 SRCS+=	__vdso_gettc.c \
 	sched_getcpu_gen.c
 
 MDASM= Ovfork.S cerror.S syscall.S
 
 # Don't generate default code for these syscalls:
 NOASM+=	sbrk.o vfork.o
diff --git a/lib/libc/i386/sys/Makefile.inc b/lib/libc/i386/sys/Makefile.inc
index f89099385dc9..accdc3367ac8 100644
--- a/lib/libc/i386/sys/Makefile.inc
+++ b/lib/libc/i386/sys/Makefile.inc
@@ -1,16 +1,14 @@
-#	from: Makefile.inc,v 1.1 1993/09/03 19:04:23 jtc Exp
-
 SRCS+=	i386_get_fsbase.c i386_get_gsbase.c i386_get_ioperm.c i386_get_ldt.c \
 	i386_set_fsbase.c i386_set_gsbase.c i386_set_ioperm.c i386_set_ldt.c \
 	i386_clr_watch.c i386_set_watch.c i386_vm86.c
 
 MDASM=	Ovfork.S cerror.S getcontext.S syscall.S
 
 NOASM+=	sbrk.o vfork.o
 
 MAN+=	i386_get_ioperm.2 i386_get_ldt.2 i386_vm86.2
 MAN+=	i386_set_watch.3
 
 MLINKS+=i386_get_ioperm.2 i386_set_ioperm.2
 MLINKS+=i386_get_ldt.2 i386_set_ldt.2
 MLINKS+=i386_set_watch.3 i386_clr_watch.3
diff --git a/lib/libc/powerpc/sys/Makefile.inc b/lib/libc/powerpc/sys/Makefile.inc
index 17b7b3b26111..9979d5179f51 100644
--- a/lib/libc/powerpc/sys/Makefile.inc
+++ b/lib/libc/powerpc/sys/Makefile.inc
@@ -1,5 +1,4 @@
-
 SRCS+=	__vdso_gettc.c \
 	sched_getcpu_gen.c
 
 MDASM+=	cerror.S
diff --git a/lib/libc/powerpc64/sys/Makefile.inc b/lib/libc/powerpc64/sys/Makefile.inc
index 17b7b3b26111..9979d5179f51 100644
--- a/lib/libc/powerpc64/sys/Makefile.inc
+++ b/lib/libc/powerpc64/sys/Makefile.inc
@@ -1,5 +1,4 @@
-
 SRCS+=	__vdso_gettc.c \
 	sched_getcpu_gen.c
 
 MDASM+=	cerror.S
diff --git a/lib/libc/powerpcspe/sys/Makefile.inc b/lib/libc/powerpcspe/sys/Makefile.inc
index 8f48df0d6021..328c43d2b1ca 100644
--- a/lib/libc/powerpcspe/sys/Makefile.inc
+++ b/lib/libc/powerpcspe/sys/Makefile.inc
@@ -1,3 +1,2 @@
-
 .PATH: ${LIBC_SRCTOP}/powerpc/sys
 .sinclude "${LIBC_SRCTOP}/powerpc/sys/Makefile.inc"
diff --git a/lib/libc/riscv/sys/Makefile.inc b/lib/libc/riscv/sys/Makefile.inc
index e98d2ceeccad..f1cc8d489553 100644
--- a/lib/libc/riscv/sys/Makefile.inc
+++ b/lib/libc/riscv/sys/Makefile.inc
@@ -1,10 +1,9 @@
-
 SRCS+=	__vdso_gettc.c \
 	sched_getcpu_gen.c
 
 MDASM=	cerror.S \
 	syscall.S \
 	vfork.S
 
 # Don't generate default code for these syscalls:
 NOASM+=	sbrk.o vfork.o
diff --git a/lib/libc/x86/sys/Makefile.inc b/lib/libc/x86/sys/Makefile.inc
index c06d18b06e3d..cbc28773ab79 100644
--- a/lib/libc/x86/sys/Makefile.inc
+++ b/lib/libc/x86/sys/Makefile.inc
@@ -1,23 +1,22 @@
-
 .PATH:	${LIBC_SRCTOP}/x86/sys
 
 SRCS+= \
 	__vdso_gettc.c \
 	pkru.c \
 	sched_getcpu_x86.c
 
 MAN+=	\
 	pkru.3
 
 # Note: vdso support for hyperv only on amd64
 .if ${MACHINE_CPUARCH} == "amd64" && ${MK_HYPERV} != "no"
 CFLAGS+=	-DWANT_HYPERV
 .endif
 # We can't use sanitizer instrumentation on ifuncs called during sanitizer
 # runtime startup.
 .if ${MK_ASAN} != "no"
 CFLAGS.__vdso_gettc.c+=-fno-sanitize=address
 .endif
 .if ${MK_UBSAN} != "no"
 CFLAGS.__vdso_gettc.c+=-fno-sanitize=undefined
 .endif