The ornamental design for a firehydrantfluting, as shown and described.
FIG. 1 is a perspective view of the claimed design.
FIG. 2 is a front elevation view thereof.
FIG. 3 is a rear elevation view thereof.
FIG. 4 is a right-side elevation view thereof.
FIG. 5 is a left-side elevation view thereof.
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines shown in the figures are for the purpose of illustrating environment and form no part of the claimed design. The dash-dot-dot-dash lines in the figures are for the purpose of showing boundaries of the design and form no part of the claimed design.