wc: inconsistent byte counts

[mknos]

• The byte count reported by wc was different depending on whether the -w option is set (-w is set by default)
• The the code for $opt_w was modifying the line string to calculate a word count before the code for the other options is able to inspect the line
• This patch makes the code $opt_w modify its own copy of the line

%stat aaa.c # stat shows the correct size too
  File: aaa.c
  Size: 470       	Blocks: 8          IO Block: 4096   regular file
Device: b302h/45826d	Inode: 1034312     Links: 1
Access: (0644/-rw-r--r--)  Uid: ( 1000/      pi)   Gid: ( 1000/      pi)
Access: 2024-11-18 12:56:23.329998345 +0800
Modify: 2024-11-18 12:56:23.329998345 +0800
Change: 2024-11-18 12:56:23.329998345 +0800
 Birth: 2024-11-18 12:56:23.329998345 +0800
%perl wc  aaa.c # -w enabled by default
        30        66       454 aaa.c
%perl wc -c  aaa.c # -w disabled
       470 aaa.c

[coveralls]

Pull Request Test Coverage Report for Build 12807755627

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.7%) to 73.389%

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Totals
Change from base Build 12683001290:	-0.7%
Covered Lines:	353
Relevant Lines:	481

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 12807755627

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.7%) to 73.389%

---

Totals
Change from base Build 12683001290:	-0.7%
Covered Lines:	353
Relevant Lines:	481

---

💛 - Coveralls