x86: correct "-Q" option handling
For another patch I wanted to use a sufficiently benign option (simply to be able to specify one, which certain test case invocations require), and I stumbled across -Q in the --help output. Before realizing that this is x86-specific anyway, I've tried and and ran into a mysterious testsuite failure, until I further realized that other than the help text suggests the option requires an argument. Correct the help text, and make the implementation actually match what the comment there has been describing (and what the help text now says).
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@ -1,3 +1,9 @@
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2019-07-04 Jan Beulich <jbeulich@suse.com>
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* config/tc-i386.c (md_parse_option): Don't blindly accept all
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-Q options.
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(md_show_usage): Correctly name the ignored -Q option flavors.
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2019-07-04 Jan Beulich <jbeulich@suse.com>
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* config/obj-elf.c (obj_elf_type): Check for conflicts between
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@ -11141,6 +11141,8 @@ md_parse_option (int c, const char *arg)
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/* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
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should be emitted or not. FIXME: Not implemented. */
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case 'Q':
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if ((arg[0] != 'y' && arg[0] != 'n') || arg[1])
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return 0;
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break;
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/* -V: SVR4 argument to print version ID. */
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@ -11643,7 +11645,7 @@ md_show_usage (FILE *stream)
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{
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#if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
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fprintf (stream, _("\
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-Q ignored\n\
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-Qy, -Qn ignored\n\
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-V print assembler version number\n\
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-k ignored\n"));
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#endif
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