Some people would get stuck on this exercise, trying to understand the meaning
behind foo, fuzz, baz etc. Making the theme of the code make a little more sense
to humans should hopefully prevent people from getting confused by abstract and
non-sensical tests.
Exercise errors6.rs prompts the user to add a method named `from_parseint`. This commit changes the method name to the corrected snakecase format, `from_parse_int`.
In errors5.rs, there are two lines of a pattern matching block for which the order is reversed between the exercise file and the solution file. Since these lines are not changed as part of the exercise, this commit updates the exercise to make the order of the lines consistent with the solution, so that users will focus only on the lines that change between the exercise and the solution.
In the instructions for hashmaps2.rs, the last sentence of the include the phrase "these fruits", which refers to fruits that were mentioned two sentences prior.
Having a sentence in between the first sentence in which the fruits were described and a later sentence in which the phrase "these fruits" is used makes this confusing to read, since the phrase "these fruits" does not come immediately after the mention of the fruits that the phrase refers to.
This pull request expands the last sentence to explicitly refer to the fruits being mentioned, in order to add clarity about the requirement of the exercise.
