Fixes an it's -> its case in Icecoon's Weapon Pack mod.
Fires generate hot air
Hot air created by fire lingers longer, and has more strength levels
Handheld game fix.

Fixes https://github.com/CleverRaven/Cataclysm-DDA/issues/9061.

There's likely a more flexible/elegant fix for this, but I didn't see
it.
Stethoscope spawn expansion.

Fixes https://github.com/CleverRaven/Cataclysm-DDA/issues/9060.

Adds stethoscope spawns to hospital_bed and hospital_lab groups.
Gives trowel digging quality level one.

Like a digging stick.
Category fix for bike helmet.
Fixes tomato soup.

I'm pretty sure this was a typo.
Other soups.
.40 FMJ changes

In order to follow the description & better match the parent round, I decreased the damage, dispersion & recoil.
Changed italian seasoning, seasoned salt, and black pepper to have weight 1 instead of 5.
Changes powdered egg to have weight of 1 too, because it also has had weight 5 and 100 charges.
So, apparently, *this can be NULL sometimes.

Fixes #9078.

And the clang sayeth, "verily, in well-defined C++ code, the 'this'
pointer cannot be null!". And, in reply, we respondeth, "our C++ code be
not well-defined." Amen.
Merge pull request #9081 from narc0tiq/this-is-null-sparta

So, apparently, *this can be NULL sometimes.
Edit name of "t shirt" to "t-shirt" to match others of similar name
Merge pull request #9076 from Barhandar/spice-must-flow

Seasonings weigh less
Merge pull request #9073 from grizzlyadamz/40-FMJ-edit

.40 FMJ changes
Merge pull request #9082 from Caleneledh/tshirt

Edited name of "t shirt" to "t-shirt" to match others of similar name fixes #9077
Sheet.
Towel.