[1.13.7] Using dotenv file and get unrecognized configuration key warn.

[edufolly]

Describe the bug

Get this warn message:

2021-06-09 20:33:16,068 WARN  [io.qua.config] (Quarkus Main Thread) Unrecognized configuration key "quarkus.hibernate.orm.database.generation" was provided; it will be ignored; verify that the dependency extension for this configuration is set or that you did not make a typo
2021-06-09 20:33:16,068 WARN  [io.qua.config] (Quarkus Main Thread) Unrecognized configuration key "quarkus.datasource.db.kind" was provided; it will be ignored; verify that the dependency extension for this configuration is set or that you did not make a typo

Expected behavior

No warn message for QUARKUS_DATASOURCE_DB_KIND and QUARKUS_HIBERNATE_ORM_DATABASE_GENERATION.

Actual behavior

Quarkus works fine, but the warning message is shown.

If I set QUARKUS_DATASOURCE_DB-KIND=postgresql the warning message is not displayed, but Quarkus doesn't work correctly. Same behavior for QUARKUS_HIBERNATE_ORM_DATABASE_GENERATION=drop-and-create.

To Reproduce

Create any project with dotenv file and add some property with -.

Configuration

QUARKUS_DATASOURCE_DB_KIND=postgresql
QUARKUS_DATASOURCE_USERNAME=postgres
QUARKUS_DATASOURCE_PASSWORD=postgres
QUARKUS_DATASOURCE_JDBC_URL=jdbc:postgresql://localhost:5432/hibernate_dev
QUARKUS_HIBERNATE_ORM_DATABASE_GENERATION=drop-and-create

Environment (please complete the following information):

Output of uname -a or ver

Darwin MacBook.local 20.5.0 Darwin Kernel Version 20.5.0: Sat May 8 05:10:33 PDT 2021; root:xnu-7195.121.3~9/RELEASE_X86_64 x86_64

Output of java -version

openjdk 11.0.11 2021-04-20
OpenJDK Runtime Environment AdoptOpenJDK-11.0.11+9 (build 11.0.11+9)
OpenJDK 64-Bit Server VM AdoptOpenJDK-11.0.11+9 (build 11.0.11+9, mixed mode)

Quarkus version or git rev

1.13.7

Build tool (ie. output of mvnw --version or gradlew --version)

---

Gradle 6.8.3

Build time: 2021-02-22 16:13:28 UTC
Revision: 9e26b4a9ebb910eaa1b8da8ff8575e514bc61c78

Kotlin: 1.4.20
Groovy: 2.5.12
Ant: Apache Ant(TM) version 1.10.9 compiled on September 27 2020
JVM: 11.0.11 (AdoptOpenJDK 11.0.11+9)
OS: Mac OS X 11.4 x86_64

[quarkus-bot]

/cc @evanchooly

[kontoeniki]

Same with 1.13.6.Final. Until 1.13.4 the underscore configuration worked fine.

[gsmet]

/cc @radcortez

[radcortez]

This was fixed with #17798. It seems we didn't backport it. Anyway, I'll add these as an additional test case to make sure it is correct.