The ornamental design for a panicbarstrap, as shown and described.
FIG. 1 is a perspective view of a panic bar strap showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof, the right side elevational view being a mirror image thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a perspective view thereof, shown in the environmental use.
The broken lines indicating environment and forms no part of the claimed design. The break lines indicate indeterminate length and the portions between the break lines form no part of the claimed design.