Sorry, I cannot reproduce
# yum --enablerepo=remi-php72 install php-cli
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-manager
remi-php72 | 2.9 kB 00:00:00
remi-php72/primary_db | 175 kB 00:00:00
Resolving Dependencies
--> Running transaction check
---> Package php-cli.x86_64 0:7.2.1-1.el7.remi will be installed
--> Processing Dependency: libargon2.so.0()(64bit) for package: php-cli-7.2.1-1.el7.remi.x86_64
--> Running transaction check
---> Package libargon2.x86_64 0:20161029-2.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
====================================================================================================================================================================================
Package Arch Version Repository Size
====================================================================================================================================================================================
Installing:
php-cli x86_64 7.2.1-1.el7.remi remi-php72 4.8 M
Installing for dependencies:
libargon2 x86_64 20161029-2.el7 epel 23 k
Transaction Summary
====================================================================================================================================================================================
Install 1 Package (+1 Dependent package)
Total size: 4.8 M
Total download size: 23 k
Installed size: 15 M
Is this ok [y/d/N]:
Please post yum command and full output
Desktop: Fedora 27 x86_64 + rpmfusion + remi-test + remi-dev
Laptop: Fedora 26 x86_64 + remi (SCL only)
Hosting Server: CentOS 6.9 x86_64 + EPEL + remi + remi-php70