hoist field width initialization to avoid LTO warning #278
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The
field_widthmember of the format spec structure was only being initialized in a code path where it was known to be used in the future. This confuses GCC's always-flakymaybe-uninitializedwarning logic, which is disabled innanoprintf.hbut seems to persist due to a GCC bug where LTO ignores warning flags.So, this PR just moves
field_widthinitialization to the common path.