Check for both default and alternative nosec tags

[rafaveira3]

Closes #425

This PR aims to add an OR statement when checking a specific line of code for both default and alternative flag. If any of them is found, the line should be considered as a false positive.

Changes

• analyze.go: Added an OR logic to check for both tags and updated the function description.
• analyze_test.go: Updated one function description and adjusted another test as the default tag should also be considered when the alternative is set.
• Makefile: Added a few aliases to avoid errors when working outside the GOPATH

[ccojocar]

@rafaveira3 Thanks for this contribution! It seems that one test is failing:

Analyzer when processing a package 
  should not ignore vulnerabilities
  /home/travis/gopath/src/github.com/securego/gosec/analyzer_test.go:292
• Failure [0.238 seconds]
Analyzer
/home/travis/gopath/src/github.com/securego/gosec/analyzer_test.go:19
  when processing a package
  /home/travis/gopath/src/github.com/securego/gosec/analyzer_test.go:32
    should not ignore vulnerabilities [It]
    /home/travis/gopath/src/github.com/securego/gosec/analyzer_test.go:292
    Expected
        <[]*gosec.Issue | len:0, cap:16>: []
    to have length 1
    /home/travis/gopath/src/github.com/securego/gosec/analyzer_test.go:312

[ccojocar]

It looks good! Please could you fix the test? Thanks!

[codecov-io]

Codecov Report

Merging #426 into master will increase coverage by 0.14%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #426      +/-   ##
==========================================
+ Coverage   71.38%   71.52%   +0.14%     
==========================================
  Files           9        9              
  Lines         601      604       +3     
==========================================
+ Hits          429      432       +3     
  Misses        154      154              
  Partials       18       18

Impacted Files	Coverage Δ
analyzer.go	92.48% <100%> (+0.13%)	⬆️

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[rafaveira3]

Sure, @ccojocar! Sorry about that. I have adjusted the failing test to now pass as the default #nosec tag is being used at b00176a.

I have also proposed at 694b37d changes in the Makefile to add a few aliases to avoid errors when working outside the GOPATH.