sizeof('c')=4, not 1: fix read-past-the-end/overallocation

[nabijaczleweli]

As found by DCS: [^._]sizeof[ (]'.{1,2}' filetype:c

Ref: https://paste.sr.ht/~nabijaczleweli/6ee9ccf301a2651afb693bff46e3671d3f7cdd89
Ref: https://101010.pl/@nabijaczleweli/111587138076843793

[vmwclabot]

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[vmwclabot]

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[nabijaczleweli]

The same query also reveals

1014    int vixPrefixDataSize = (MAX64_DECIMAL_DIGITS * 2)
1015                              + (sizeof(' ') * 2)
1016                              + sizeof('\0')
1017                              + sizeof(' ') * 10;   // for RPC header
"open-vm-tools/services/plugins/vix/foundryToolsDaemon.c" 1133 lines --89%--                                                                              1010,1        89%

but without any context I cannot assess if this is also a mistake (most likely yes).

[vmwclabot]

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