COMP: Fix -Wparentheses warning in CLI/SpharmTool/argio.hh
COMP: Fix -Wparentheses warning in CLI/SpharmTool/argio.hh

This commit fixes warnings like the following:

/tmp/SPHARM-PDM/Modules/CLI/SpharmTool/argio.hh: In function ‘T ipGetArgument(const char**, const char*, T (*)(const char*), T)’:
/tmp/SPHARM-PDM/Modules/CLI/SpharmTool/argio.hh:37:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses]
     if (strstr(argv[i],keystr))
        ^

bpaniagua/SPHARM-PDM,NIRALUser/SPHARM-PDM,NIRALUser/SPHARM-PDM,bpaniagua/SPHARM-PDM,bpaniagua/SPHARM-PDM,NIRALUser/SPHARM-PDM