Rename COPYRIGHT_DETAILS to LEGAL_DETAILS

Turns out GitHub's `Licensee` gem treats any file with the word
"copyright" in it as a potential license, and therefore doesn't
recognize and list Roc's license as UPL-1.0 because it thinks
there might be two licenses or something.

d274e47c71/lib/licensee/project_files/license_file.rb (L26)

cli/tests/helpers.rs

@@ -25,7 +25,7 @@ pub struct Out {
 pub fn path_to_roc_binary() -> PathBuf {
     // Adapted from https://github.com/volta-cli/volta/blob/cefdf7436a15af3ce3a38b8fe53bb0cfdb37d3dd/tests/acceptance/support/sandbox.rs#L680
     // by the Volta Contributors - license information can be found in
-    // the COPYRIGHT_DETAILS file in the root directory of this distribution.
+    // the LEGAL_DETAILS file in the root directory of this distribution.
     //
     // Thank you, Volta contributors!
     let mut path = env::var_os("CARGO_BIN_PATH")

compiler/can/src/num.rs

@@ -126,7 +126,7 @@ pub fn finish_parsing_float(raw: &str) -> Result<f64, (&str, FloatErrorKind)> {
 ///
 /// The Rust Project is dual-licensed under either Apache 2.0 or MIT,
 /// at the user's choice. License information can be found in
-/// the COPYRIGHT_DETAILS file in the root directory of this distribution.
+/// the LEGAL_DETAILS file in the root directory of this distribution.
 ///
 /// Thanks to the Rust project and its contributors!
 trait FromStrRadixHelper: PartialOrd + Copy {

compiler/can/src/operator.rs

@@ -9,7 +9,7 @@ use roc_region::all::{Located, Region};
 
 // BinOp precedence logic adapted from Gluon by Markus Westerlind
 // https://github.com/gluon-lang/gluon - license information can be found in
-// the COPYRIGHT_DETAILS file in the root directory of this distribution.
+// the LEGAL_DETAILS file in the root directory of this distribution.
 //
 // Thank you, Markus!
 

editor/src/ui/text/lines.rs

@@ -1,5 +1,5 @@
 // Adapted from https://github.com/cessen/ropey
-// by Nathan Vegdahl - license information can be found in the COPYRIGHT_DETAILS
+// by Nathan Vegdahl - license information can be found in the LEGAL_DETAILS
 // file in the root directory of this distribution.
 //
 // Thank you, Nathan!

roc_std/build.rs

@@ -1,6 +1,6 @@
 // Adapted from https://github.com/TheDan64/scoped_alloca
 // by Daniel Kolsoi - license information can be found in
-// the COPYRIGHT_DETAILS file in the root directory of this distribution.
+// the LEGAL_DETAILS file in the root directory of this distribution.
 //
 // Thank you, Dan!
 

roc_std/src/alloca.c

@@ -2,7 +2,7 @@
 
 // Adapted from https://github.com/TheDan64/scoped_alloca
 // by Daniel Kolsoi - license information can be found in
-// the COPYRIGHT_DETAILS file in the root directory of this distribution.
+// the LEGAL_DETAILS file in the root directory of this distribution.
 //
 // Thank you, Dan!
 

roc_std/src/alloca.rs

@@ -1,6 +1,6 @@
 // Adapted from https://github.com/TheDan64/scoped_alloca
 // by Daniel Kolsoi - license information can be found in
-// the COPYRIGHT_DETAILS file in the root directory of this distribution.
+// the LEGAL_DETAILS file in the root directory of this distribution.
 //
 // Thank you, Dan!