Console output statements in production code reduce library usability

[krystophny]

Description

Source code contains 10 print statements that should be replaced with proper logging mechanism.

Affected Files

• fortplot_png.f90: 2 print statements
• fortplot_pdf.f90: 1 print statement
• fortplot.f90: 5 print statements
• fortplot_text.f90: 2 print statements

Impact

• Unwanted console output in production applications
• No control over logging levels
• Poor user experience in library usage

Expected Behavior

• Use proper logging mechanism or make output conditional
• Allow users to control verbosity
• Clean library interface without unexpected output

Severity

MINOR - Functional but affects user experience