Improve --help output to generate references to option aliases.

gcc/
	PR driver/68043
	* opts.c (undocumented_msg, use_diagnosed_msg): New globals.
	(print_filtered_help): Reference aliased option's name and encourage
	readers to use it in preference to the alias if the former is not
	documented.  Mention when using an option is diagnosed.
	* gcc.c (display_help): End each sentence with a period.

	* ada/gcc-interface/lang.opt: End each sentence that describes
	an option with a period.
	* c-family/c.opt: Same.
	* common.opt: Same.
	* config/aarch64/aarch64.opt: Same.
	* config/alpha/alpha.opt: Same.
	* config/arc/arc.opt: Same.
	* config/arm/arm.opt: Same.
	* config/avr/avr.opt: Same.
	* config/bfin/bfin.opt: Same.
	* config/c6x/c6x.opt: Same.
	* config/cr16/cr16.opt: Same.
	* config/cris/cris.opt: Same.
	* config/cris/linux.opt: Same.
	* config/darwin.opt: Same.
	* config/epiphany/epiphany.opt: Same.
	* config/fr30/fr30.opt: Same.
	* config/frv/frv.opt: Same.
	* config/ft32/ft32.opt: Same.
	* config/g.opt: Same.
	* config/h8300/h8300.opt: Same.
	* config/i386/cygming.opt: Same.
	* config/i386/djgpp.opt: Same.
	* config/i386/i386.opt: Same.
	* config/i386/interix.opt: Same.
	* config/i386/mingw-w64.opt: Same.
	* config/i386/mingw.opt: Same.
	* config/ia64/ia64.opt: Same.
	* config/ia64/ilp32.opt: Same.
	* config/iq2000/iq2000.opt: Same.
	* config/linux.opt: Same.
	* config/lm32/lm32.opt: Same.
	* config/lynx.opt: Same.
	* config/m32c/m32c.opt: Same.
	* config/m32r/m32r.opt: Same.
	* config/m68k/ieee.opt: Same.
	* config/m68k/m68k.opt: Same.
	* config/mcore/mcore.opt: Same.
	* config/mep/mep.opt: Same.
	* config/microblaze/microblaze.opt: Same.
	* config/mips/mips.opt: Same.
	* config/mmix/mmix.opt: Same.
	* config/mn10300/mn10300.opt: Same.
	* config/moxie/moxie.opt: Same.
	* config/msp430/msp430.opt: Same.
	* config/nios2/elf.opt: Same.
	* config/nios2/nios2.opt: Same.
	* config/nvptx/nvptx.opt: Same.
	* config/pa/pa-hpux.opt: Same.
	* config/pa/pa-hpux1010.opt: Same.
	* config/pa/pa-hpux1111.opt: Same.
	* config/pa/pa-hpux1131.opt: Same.
	* config/pa/pa.opt: Same.
	* config/pa/pa64-hpux.opt: Same.
	* config/pdp11/pdp11.opt: Same.
	* config/rl78/rl78.opt: Same.
	* config/rs6000/476.opt: Same.
	* config/rs6000/aix64.opt: Same.
	* config/rs6000/darwin.opt: Same.
	* config/rs6000/linux64.opt: Same.
	* config/rs6000/rs6000.opt: Same.
	* config/rs6000/sysv4.opt: Same.
	* config/s390/s390.opt: Same.
	* config/s390/tpf.opt: Same.
	* config/sh/sh.opt: Same.
	* config/sol2.opt: Same.
	* config/sparc/long-double-switch.opt: Same.
	* config/sparc/sparc.opt: Same.
	* config/spu/spu.opt: Same.
	* config/stormy16/stormy16.opt: Same.
	* config/tilegx/tilegx.opt: Same.
	* config/tilepro/tilepro.opt: Same.
	* config/v850/v850.opt: Same.
	* config/vax/vax.opt: Same.
	* config/visium/visium.opt: Same.
	* config/vms/vms.opt: Same.
	* config/vxworks.opt: Same.
	* config/xtensa/xtensa.opt: Same.
	* fortran/lang.opt: Same.

testsuite/
	PR driver/68043
	* gcc.misc-tests/help.exp: Adjust.
	* lib/options.exp (check_for_options): Add detail to output.

From-SVN: r229155

1 files changed, 9 insertions, 9 deletions

diff --git a/gcc/config/msp430/msp430.opt b/gcc/config/msp430/msp430.opt
index e055f61..aa1b39e 100644
--- a/gcc/config/msp430/msp430.opt
+++ b/gcc/config/msp430/msp430.opt
@@ -1,10 +1,10 @@
 msim
 Target
-Use simulator runtime
+Use simulator runtime.
 
 masm-hex
 Target Mask(ASM_HEX)
-Force assembly output to always use hex constants
+Force assembly output to always use hex constants.
 
 mmcu=
 Target Report ToLower Joined RejectNegative Var(target_mcu)
@@ -12,19 +12,19 @@ Specify the MCU to build for.
 
 mcpu=
 Target Report Joined RejectNegative Var(target_cpu)
-Specify the ISA to build for: msp430, msp430x, msp430xv2
+Specify the ISA to build for: msp430, msp430x, msp430xv2.
 
 mlarge
 Target Report Mask(LARGE) RejectNegative
-Select large model - 20-bit addresses/pointers
+Select large model - 20-bit addresses/pointers.
 
 msmall
 Target Report InverseMask(LARGE) RejectNegative
-Select small model - 16-bit addresses/pointers (default)
+Select small model - 16-bit addresses/pointers (default).
 
 mrelax
 Target Report
-Optimize opcode sizes at link time
+Optimize opcode sizes at link time.
 
 mOs
 Target Undocumented Mask(OPT_SPACE)
@@ -38,7 +38,7 @@ config/msp430/msp430-opts.h
 
 mhwmult=
 Target Joined RejectNegative Report ToLower Var(msp430_hwmult_type) Enum(msp430_hwmult_types) Init(AUTO)
-Specify the type of hardware multiply to support
+Specify the type of hardware multiply to support.
 
 Enum
 Name(msp430_hwmult_types) Type(enum msp430_hwmult_types)
@@ -60,11 +60,11 @@ Enum(msp430_hwmult_types) String(f5series) Value(F5SERIES)
 
 mcode-region=
 Target Joined RejectNegative Report ToLower Var(msp430_code_region) Enum(msp430_regions) Init(ANY)
-Specify whether functions should be placed into low or high memory
+Specify whether functions should be placed into low or high memory.
 
 mdata-region=
 Target Joined RejectNegative Report ToLower Var(msp430_data_region) Enum(msp430_regions) Init(ANY)
-Specify whether variables should be placed into low or high memory
+Specify whether variables should be placed into low or high memory.
 
 Enum
 Name(msp430_regions) Type(enum msp430_regions)